1/////////////////////////////////////////////////////////////////
2/// getID3() by James Heinrich <info@getid3.org> //
3// available at http://getid3.sourceforge.net //
4// or https://www.getid3.org //
5// also https://github.com/JamesHeinrich/getID3 //
6/////////////////////////////////////////////////////////////////
7
8*****************************************************************
9*****************************************************************
10
11 getID3() is released under multiple licenses. You may choose
12 from the following licenses, and use getID3 according to the
13 terms of the license most suitable to your project.
14
15GNU GPL: https://gnu.org/licenses/gpl.html (v3)
16 https://gnu.org/licenses/old-licenses/gpl-2.0.html (v2)
17 https://gnu.org/licenses/old-licenses/gpl-1.0.html (v1)
18
19GNU LGPL: https://gnu.org/licenses/lgpl.html (v3)
20
21Mozilla MPL: https://www.mozilla.org/MPL/2.0/ (v2)
22
23getID3 Commercial License: https://www.getid3.org/#gCL
24(no longer available, existing licenses remain valid)
25
26*****************************************************************
27*****************************************************************
28Copies of each of the above licenses are included in the 'licenses'
29directory of the getID3 distribution.
30
31
32 +----------------------------------------------+
33 | If you want to donate, there is a link on |
34 | https://www.getid3.org for PayPal donations. |
35 +----------------------------------------------+
36
37
38Quick Start
39===========================================================================
40
41Q: How can I check that getID3() works on my server/files?
42A: Unzip getID3() to a directory, then access /demos/demo.browse.php
43
44
45
46Support
47===========================================================================
48
49Q: I have a question, or I found a bug. What do I do?
50A: The preferred method of support requests and/or bug reports is the
51 forum at http://support.getid3.org/
52
53
54
55Sourceforge Notification
56===========================================================================
57
58It's highly recommended that you sign up for notification from
59Sourceforge for when new versions are released. Please visit:
60http://sourceforge.net/project/showfiles.php?group_id=55859
61and click the little "monitor package" icon/link. If you're
62previously signed up for the mailing list, be aware that it has
63been discontinued, only the automated Sourceforge notification
64will be used from now on.
65
66
67
68What does getID3() do?
69===========================================================================
70
71Reads & parses (to varying degrees):
72 ¤ tags:
73 * APE (v1 and v2)
74 * ID3v1 (& ID3v1.1)
75 * ID3v2 (v2.4, v2.3, v2.2)
76 * Lyrics3 (v1 & v2)
77
78 ¤ audio-lossy:
79 * MP3/MP2/MP1
80 * MPC / Musepack
81 * Ogg (Vorbis, OggFLAC, Speex, Opus)
82 * AAC / MP4
83 * AC3
84 * DTS
85 * RealAudio
86 * Speex
87 * DSS
88 * VQF
89
90 ¤ audio-lossless:
91 * AIFF
92 * AU
93 * Bonk
94 * CD-audio (*.cda)
95 * FLAC
96 * LA (Lossless Audio)
97 * LiteWave
98 * LPAC
99 * MIDI
100 * Monkey's Audio
101 * OptimFROG
102 * RKAU
103 * Shorten
104 * TTA
105 * VOC
106 * WAV (RIFF)
107 * WavPack
108
109 ¤ audio-video:
110 * ASF: ASF, Windows Media Audio (WMA), Windows Media Video (WMV)
111 * AVI (RIFF)
112 * Flash
113 * Matroska (MKV)
114 * MPEG-1 / MPEG-2
115 * NSV (Nullsoft Streaming Video)
116 * Quicktime (including MP4)
117 * RealVideo
118
119 ¤ still image:
120 * BMP
121 * GIF
122 * JPEG
123 * PNG
124 * TIFF
125 * SWF (Flash)
126 * PhotoCD
127
128 ¤ data:
129 * ISO-9660 CD-ROM image (directory structure)
130 * SZIP (limited support)
131 * ZIP (directory structure)
132 * TAR
133 * CUE
134
135
136Writes:
137 * ID3v1 (& ID3v1.1)
138 * ID3v2 (v2.3 & v2.4)
139 * VorbisComment on OggVorbis
140 * VorbisComment on FLAC (not OggFLAC)
141 * APE v2
142 * Lyrics3 (delete only)
143
144
145
146Requirements
147===========================================================================
148
149* PHP 4.2.0 up to 5.2.x for getID3() 1.7.x (and earlier)
150* PHP 5.0.5 (or higher) for getID3() 1.8.x (and up)
151* PHP 5.3.0 (or higher) for getID3() 1.9.17 (and up)
152* PHP 5.3.0 (or higher) for getID3() 2.0.x (and up)
153* at least 4MB memory for PHP. 8MB or more is highly recommended.
154 12MB is required with all modules loaded.
155
156
157
158Usage
159===========================================================================
160
161See /demos/demo.basic.php for a very basic use of getID3() with no
162fancy output, just scanning one file.
163
164See structure.txt for the returned data structure.
165
166*> For an example of a complete directory-browsing, <*
167*> file-scanning implementation of getID3(), please run <*
168*> /demos/demo.browse.php <*
169
170See /demos/demo.mysql.php for a sample recursive scanning code that
171scans every file in a given directory, and all sub-directories, stores
172the results in a database and allows various analysis / maintenance
173operations
174
175To analyze remote files over HTTP or FTP you need to copy the file
176locally first before running getID3(). Your code would look something
177like this:
178
179// Copy remote file locally to scan with getID3()
180$remotefilename = 'http://www.example.com/filename.mp3';
181if ($fp_remote = fopen($remotefilename, 'rb')) {
182 $localtempfilename = tempnam('/tmp', 'getID3');
183 if ($fp_local = fopen($localtempfilename, 'wb')) {
184 while ($buffer = fread($fp_remote, 32768)) {
185 fwrite($fp_local, $buffer);
186 }
187 fclose($fp_local);
188
189 $remote_headers = array_change_key_case(get_headers($remotefilename, 1), CASE_LOWER);
190 $remote_filesize = (isset($remote_headers['content-length']) ? (is_array($remote_headers['content-length']) ? $remote_headers['content-length'][count($remote_headers['content-length']) - 1] : $remote_headers['content-length']) : null);
191
192 // Initialize getID3 engine
193 $getID3 = new getID3;
194
195 $ThisFileInfo = $getID3->analyze($localtempfilename, $remote_filesize, basename($remotefilename));
196
197 // Delete temporary file
198 unlink($localtempfilename);
199 }
200 fclose($fp_remote);
201}
202
203Note: since v1.9.9-20150212 it is possible a second and third parameter
204to $getID3->analyze(), for original filesize and original filename
205respectively. This permits you to download only a portion of a large remote
206file but get accurate playtime estimates, assuming the format only requires
207the beginning of the file for correct format analysis.
208
209See /demos/demo.write.php for how to write tags.
210
211
212
213What does the returned data structure look like?
214===========================================================================
215
216See structure.txt
217
218It is recommended that you look at the output of
219/demos/demo.browse.php scanning the file(s) you're interested in to
220confirm what data is actually returned for any particular filetype in
221general, and your files in particular, as the actual data returned
222may vary considerably depending on what information is available in
223the file itself.
224
225
226
227Notes
228===========================================================================
229
230getID3() 1.x:
231If the format parser encounters a critical problem, it will return
232something in $fileinfo['error'], describing the encountered error. If
233a less critical error or notice is generated it will appear in
234$fileinfo['warning']. Both keys may contain more than one warning or
235error. If something is returned in ['error'] then the file was not
236correctly parsed and returned data may or may not be correct and/or
237complete. If something is returned in ['warning'] (and not ['error'])
238then the data that is returned is OK - usually getID3() is reporting
239errors in the file that have been worked around due to known bugs in
240other programs. Some warnings may indicate that the data that is
241returned is OK but that some data could not be extracted due to
242errors in the file.
243
244getID3() 2.x:
245See above except errors are thrown (so you will only get one error).
246
247
248
249Disclaimer
250===========================================================================
251
252getID3() has been tested on many systems, on many types of files,
253under many operating systems, and is generally believe to be stable
254and safe. That being said, there is still the chance there is an
255undiscovered and/or unfixed bug that may potentially corrupt your
256file, especially within the writing functions. By using getID3() you
257agree that it's not my fault if any of your files are corrupted.
258In fact, I'm not liable for anything :)
259
260
261
262License
263===========================================================================
264
265GNU General Public License - see license.txt
266
267This program is free software; you can redistribute it and/or
268modify it under the terms of the GNU General Public License
269as published by the Free Software Foundation; either version 2
270of the License, or (at your option) any later version.
271
272This program is distributed in the hope that it will be useful,
273but WITHOUT ANY WARRANTY; without even the implied warranty of
274MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
275GNU General Public License for more details.
276
277You should have received a copy of the GNU General Public License
278along with this program; if not, write to:
279Free Software Foundation, Inc.
28059 Temple Place - Suite 330
281Boston, MA 02111-1307, USA.
282
283FAQ:
284Q: Can I use getID3() in my program? Do I need a commercial license?
285A: You're generally free to use getID3 however you see fit. The only
286 case in which you would require a commercial license is if you're
287 selling your closed-source program that integrates getID3. If you
288 sell your program including a copy of getID3, that's fine as long
289 as you include a copy of the sourcecode when you sell it. Or you
290 can distribute your code without getID3 and say "download it from
291 getid3.sourceforge.net"
292
293
294
295Why is it called "getID3()" if it does so much more than just that?
296===========================================================================
297
298v0.1 did in fact just do that. I don't have a copy of code that old, but I
299could essentially write it today with a one-line function:
300 function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); }
301
302
303Future Plans
304===========================================================================
305https://www.getid3.org/phpBB3/viewforum.php?f=7
306
307* Better support for MP4 container format
308* Scan for appended ID3v2 tag at end of file per ID3v2.4 specs (Section 5.0)
309* Support for JPEG-2000 (http://www.morgan-multimedia.com/jpeg2000_overview.htm)
310* Support for MOD (mod/stm/s3m/it/xm/mtm/ult/669)
311* Support for ACE (thanks Vince)
312* Support for Ogg other than Vorbis, Speex and OggFlac (ie. Ogg+Xvid)
313* Ability to create Xing/LAME VBR header for VBR MP3s that are missing VBR header
314* Ability to "clean" ID3v2 padding (replace invalid padding with valid padding)
315* Warn if MP3s change version mid-stream (in full-scan mode)
316* check for corrupt/broken mid-file MP3 streams in histogram scan
317* Support for lossless-compression formats
318 (http://www.firstpr.com.au/audiocomp/lossless/#Links)
319 (http://compression.ca/act-sound.html)
320 (http://web.inter.nl.net/users/hvdh/lossless/lossless.htm)
321* Support for RIFF-INFO chunks
322 * http://lotto.st-andrews.ac.uk/~njh/tag_interchange.html
323 (thanks Nick Humfrey <njhØsurgeradio*co*uk>)
324 * http://abcavi.narod.ru/sof/abcavi/infotags.htm
325 (thanks Kibi)
326* Better support for Bink video
327* http://www.hr/josip/DSP/AudioFile2.html
328* http://www.pcisys.net/~melanson/codecs/
329* Detect mp3PRO
330* Support for PSD
331* Support for JPC
332* Support for JP2
333* Support for JPX
334* Support for JB2
335* Support for IFF
336* Support for ICO
337* Support for ANI
338* Support for EXE (comments, author, etc) (thanks p*quaedackersØplanet*nl)
339* Support for DVD-IFO (region, subtitles, aspect ratio, etc)
340 (thanks p*quaedackersØplanet*nl)
341* More complete support for SWF - parsing encapsulated MP3 and/or JPEG content
342 (thanks n8n8Øyahoo*com)
343* Support for a2b
344* Optional scan-through-frames for AVI verification
345 (thanks rockcohenØmassive-interactive*nl)
346* Support for TTF (thanks infoØbutterflyx*com)
347* Support for DSS (https://www.getid3.org/phpBB3/viewtopic.php?t=171)
348* Support for SMAF (http://smaf-yamaha.com/what/demo.html)
349 https://www.getid3.org/phpBB3/viewtopic.php?t=182
350* Support for AMR (https://www.getid3.org/phpBB3/viewtopic.php?t=195)
351* Support for 3gpp (https://www.getid3.org/phpBB3/viewtopic.php?t=195)
352* Support for ID4 (http://www.wackysoft.cjb.net grizlyY2KØhotmail*com)
353* Parse XML data returned in Ogg comments
354* Parse XML data from Quicktime SMIL metafiles (klausrathØmac*com)
355* ID3v2 genre string creator function
356* More complete parsing of JPG
357* Support for all old-style ASF packets
358* ASF/WMA/WMV tag writing
359* Parse declared T??? ID3v2 text information frames, where appropriate
360 (thanks Christian Fritz for the idea)
361* Recognize encoder:
362 http://www.guerillasoft.com/EncSpot2/index.html
363 http://ff123.net/identify.html
364 http://www.hydrogenaudio.org/?act=ST&f=16&t=9414
365 http://www.hydrogenaudio.org/?showtopic=11785
366* Support for other OS/2 bitmap structures: Bitmap Array('BA'),
367 Color Icon('CI'), Color Pointer('CP'), Icon('IC'), Pointer ('PT')
368 http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
369* Support for WavPack RAW mode
370* ASF/WMA/WMV data packet parsing
371* ID3v2FrameFlagsLookupTagAlter()
372* ID3v2FrameFlagsLookupFileAlter()
373* obey ID3v2 tag alter/preserve/discard rules
374* http://www.geocities.com/SiliconValley/Sector/9654/Softdoc/Illyrium/Aolyr.htm
375* proper checking for LINK/LNK frame validity in ID3v2 writing
376* proper checking for ASPI-TLEN frame validity in ID3v2 writing
377* proper checking for COMR frame validity in ID3v2 writing
378* http://www.geocities.co.jp/SiliconValley-Oakland/3664/index.html
379* decode GEOB ID3v2 structure as encoded by RealJukebox,
380 decode NCON ID3v2 structure as encoded by MusicMatch
381 (probably won't happen - the formats are proprietary)
382
383
384
385Known Bugs/Issues in getID3() that may be fixed eventually
386===========================================================================
387https://www.getid3.org/phpBB3/viewtopic.php?t=25
388
389* Cannot determine bitrate for MPEG video with VBR video data
390 (need documentation)
391* Interlace/progressive cannot be determined for MPEG video
392 (need documentation)
393* MIDI playtime is sometimes inaccurate
394* AAC-RAW mode files cannot be identified
395* WavPack-RAW mode files cannot be identified
396* mp4 files report lots of "Unknown QuickTime atom type"
397 (need documentation)
398* Encrypted ASF/WMA/WMV files warn about "unhandled GUID
399 ASF_Content_Encryption_Object"
400* Bitrate split between audio and video cannot be calculated for
401 NSV, only the total bitrate. (need documentation)
402* All Ogg formats (Vorbis, OggFLAC, Speex) are affected by the
403 problem of large VorbisComments spanning multiple Ogg pages, but
404 but only OggVorbis files can be processed with vorbiscomment.
405* The version of "head" supplied with Mac OS 10.2.8 (maybe other
406 versions too) does only understands a single option (-n) and
407 therefore fails. getID3 ignores this and returns wrong md5_data.
408
409
410
411Known Bugs/Issues in getID3() that cannot be fixed
412--------------------------------------------------
413https://www.getid3.org/phpBB3/viewtopic.php?t=25
414
415* 32-bit PHP installations only:
416 Files larger than 2GB cannot always be parsed fully by getID3()
417 due to limitations in the 32-bit PHP filesystem functions.
418 NOTE: Since v1.7.8b3 there is partial support for larger-than-
419 2GB files, most of which will parse OK, as long as no critical
420 data is located beyond the 2GB offset.
421 Known will-work:
422 * all file formats on 64-bit PHP
423 * ZIP (format doesn't support files >2GB)
424 * FLAC (current encoders don't support files >2GB)
425 Known will-not-work:
426 * ID3v1 tags (always located at end-of-file)
427 * Lyrics3 tags (always located at end-of-file)
428 * APE tags (always located at end-of-file)
429 Maybe-will-work:
430 * Quicktime (will work if needed metadata is before 2GB offset,
431 that is if the file has been hinted/optimized for streaming)
432 * RIFF.WAV (should work fine, but gives warnings about not being
433 able to parse all chunks)
434 * RIFF.AVI (playtime will probably be wrong, is only based on
435 "movi" chunk that fits in the first 2GB, should issue error
436 to show that playtime is incorrect. Other data should be mostly
437 correct, assuming that data is constant throughout the file)
438* PHP <= v5 on Windows cannot read UTF-8 filenames
439
440
441Known Bugs/Issues in other programs
442-----------------------------------
443https://www.getid3.org/phpBB3/viewtopic.php?t=25
444
445* MusicBrainz Picard (at least up to v1.3.2) writes multiple
446 ID3v2.3 genres in non-standard forward-slash separated text
447 rather than parenthesis-numeric+refinement style per the ID3v2.3
448 specs. Tags written in ID3v2.4 mode are written correctly.
449 (detected and worked around by getID3())
450* PZ TagEditor v4.53.408 has been known to insert ID3v2.3 frames
451 into an existing ID3v2.2 tag which, of course, breaks things
452* Windows Media Player (up to v11) and iTunes (up to v10+) do
453 not correctly handle ID3v2.3 tags with UTF-16BE+BOM
454 encoding (they assume the data is UTF-16LE+BOM and either
455 crash (WMP) or output Asian character set (iTunes)
456* Winamp (up to v2.80 at least) does not support ID3v2.4 tags,
457 only ID3v2.3
458 see: http://forums.winamp.com/showthread.php?postid=387524
459* Some versions of Helium2 (www.helium2.com) do not write
460 ID3v2.4-compliant Frame Sizes, even though the tag is marked
461 as ID3v2.4) (detected by getID3())
462* MP3ext V3.3.17 places a non-compliant padding string at the end
463 of the ID3v2 header. This is supposedly fixed in v3.4b21 but
464 only if you manually add a registry key. This fix is not yet
465 confirmed. (detected by getID3())
466* CDex v1.40 (fixed by v1.50b7) writes non-compliant Ogg comment
467 strings, supposed to be in the format "NAME=value" but actually
468 written just "value" (detected by getID3())
469* Oggenc 0.9-rc3 flags the encoded file as ABR whether it's
470 actually ABR or VBR.
471* iTunes (versions "v7.0.0.70" is known-guilty, probably
472 other versions are too) writes ID3v2.3 comment tags using an
473 ID3v2.2 frame name (3-bytes) null-padded to 4 bytes which is
474 not valid for ID3v2.3+
475 (detected by getID3() since 1.9.12-201603221746)
476* iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably
477 other versions are too) writes ID3v2.3 comment tags using a
478 frame name 'COM ' which is not valid for ID3v2.3+ (it's an
479 ID3v2.2-style frame name) (detected by getID3())
480* MP2enc does not encode mono CBR MP2 files properly (half speed
481 sound and double playtime)
482* MP2enc does not encode mono VBR MP2 files properly (actually
483 encoded as stereo)
484* tooLAME does not encode mono VBR MP2 files properly (actually
485 encoded as stereo)
486* AACenc encodes files in VBR mode (actually ABR) even if CBR is
487 specified
488* AAC/ADIF - bitrate_mode = cbr for vbr files
489* LAME 3.90-3.92 prepends one frame of null data (space for the
490 LAME/VBR header, but it never gets written) when encoding in CBR
491 mode with the DLL
492* Ahead Nero encodes TwinVQF with a DSIZ value (which is supposed
493 to be the filesize in bytes) of "0" for TwinVQF v1.0 and "1" for
494 TwinVQF v2.0 (detected by getID3())
495* Ahead Nero encodes TwinVQF files 1 second shorter than they
496 should be
497* AAC-ADTS files are always actually encoded VBR, even if CBR mode
498 is specified (the CBR-mode switches on the encoder enable ABR
499 mode, not CBR as such, but it's not possible to tell the
500 difference between such ABR files and true VBR)
501* STREAMINFO.audio_signature in OggFLAC is always null. "The reason
502 it's like that is because there is no seeking support in
503 libOggFLAC yet, so it has no way to go back and write the
504 computed sum after encoding. Seeking support in Ogg FLAC is the
505 #1 item for the next release." - Josh Coalson (FLAC developer)
506 NOTE: getID3() will calculate md5_data in a method similar to
507 other file formats, but that value cannot be compared to the
508 md5_data value from FLAC data in a FLAC file format.
509* STREAMINFO.audio_signature is not calculated in FLAC v0.3.0 &
510 v0.4.0 - getID3() will calculate md5_data in a method similar to
511 other file formats, but that value cannot be compared to the
512 md5_data value from FLAC v0.5.0+
513* RioPort (various versions including 2.0 and 3.11) tags ID3v2 with
514 a WCOM frame that has no data portion
515* Earlier versions of Coolplayer adds illegal ID3 tags to Ogg Vorbis
516 files, thus making them corrupt.
517* Meracl ID3 Tag Writer v1.3.4 (and older) incorrectly truncates the
518 last byte of data from an MP3 file when appending a new ID3v1 tag.
519 (detected by getID3())
520* Lossless-Audio files encoded with and without the -noseek switch
521 do actually differ internally and therefore cannot match md5_data
522* iTunes has been known to append a new ID3v1 tag on the end of an
523 existing ID3v1 tag when ID3v2 tag is also present
524 (detected by getID3())
525* MediaMonkey may write a blank RGAD ID3v2 frame but put actual
526 replay gain adjustments in a series of user-defined TXXX frames
527 (detected and handled by getID3() since v1.9.2)
528
529
530
531
532Reference material:
533===========================================================================
534
535[www.id3.org material now mirrored at http://id3lib.sourceforge.net/id3/]
536* http://www.id3.org/id3v2.4.0-structure.txt
537* http://www.id3.org/id3v2.4.0-frames.txt
538* http://www.id3.org/id3v2.4.0-changes.txt
539* http://www.id3.org/id3v2.3.0.txt
540* http://www.id3.org/id3v2-00.txt
541* http://www.id3.org/mp3frame.html
542* http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html <mathewhendry@hotmail.com>
543* http://www.dv.co.yu/mpgscript/mpeghdr.htm
544* http://www.mp3-tech.org/programmer/frame_header.html
545* http://users.belgacom.net/gc247244/extra/tag.html
546* http://gabriel.mp3-tech.org/mp3infotag.html
547* http://www.id3.org/iso4217.html
548* http://www.unicode.org/Public/MAPPINGS/ISO8859/8859-1.TXT
549* http://www.xiph.org/ogg/vorbis/doc/framing.html
550* http://www.xiph.org/ogg/vorbis/doc/v-comment.html
551* http://leknor.com/code/php/class.ogg.php.txt
552* http://www.id3.org/iso639-2.html
553* http://www.id3.org/lyrics3.html
554* http://www.id3.org/lyrics3200.html
555* http://www.psc.edu/general/software/packages/ieee/ieee.html
556* http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html
557* http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html
558* http://www.jmcgowan.com/avi.html
559* http://www.wotsit.org/
560* http://www.herdsoft.com/ti/davincie/davp3xo2.htm
561* http://www.mathdogs.com/vorbis-illuminated/bitstream-appendix.html
562* "Standard MIDI File Format" by Dustin Caldwell (from www.wotsit.org)
563* http://midistudio.com/Help/GMSpecs_Patches.htm
564* http://www.xiph.org/archives/vorbis/200109/0459.html
565* http://www.replaygain.org/
566* http://www.lossless-audio.com/
567* http://download.microsoft.com/download/winmediatech40/Doc/1.0/WIN98MeXP/EN-US/ASF_Specification_v.1.0.exe
568* http://mediaxw.sourceforge.net/files/doc/Active%20Streaming%20Format%20(ASF)%201.0%20Specification.pdf
569* http://www.uni-jena.de/~pfk/mpp/sv8/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/sv8/)
570* http://jfaul.de/atl/
571* http://www.uni-jena.de/~pfk/mpp/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/)
572* http://www.libpng.org/pub/png/spec/png-1.2-pdg.html
573* http://www.real.com/devzone/library/creating/rmsdk/doc/rmff.htm
574* http://www.fastgraph.com/help/bmp_os2_header_format.html
575* http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm
576* http://flac.sourceforge.net/format.html
577* http://www.research.att.com/projects/mpegaudio/mpeg2.html
578* http://www.audiocoding.com/wiki/index.php?page=AAC
579* http://libmpeg.org/mpeg4/doc/w2203tfs.pdf
580* http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
581* http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm
582* http://www.nullsoft.com/nsv/
583* http://www.wotsit.org/download.asp?f=iso9660
584* http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html
585* http://www.cdroller.com/htm/readdata.html
586* http://www.speex.org/manual/node10.html
587* http://www.harmony-central.com/Computer/Programming/aiff-file-format.doc
588* http://www.faqs.org/rfcs/rfc2361.html
589* http://ghido.shelter.ro/
590* http://www.ebu.ch/tech_t3285.pdf
591* http://www.sr.se/utveckling/tu/bwf
592* http://ftp.aessc.org/pub/aes46-2002.pdf
593* http://cartchunk.org:8080/
594* http://www.broadcastpapers.com/radio/cartchunk01.htm
595* http://www.hr/josip/DSP/AudioFile2.html
596* http://home.attbi.com/~chris.bagwell/AudioFormats-11.html
597* http://www.pure-mac.com/extkey.html
598* http://cesnet.dl.sourceforge.net/sourceforge/bonkenc/bonk-binary-format-0.9.txt
599* http://www.headbands.com/gspot/
600* http://www.openswf.org/spec/SWFfileformat.html
601* http://j-faul.virtualave.net/
602* http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html
603* http://cui.unige.ch/OSG/info/AudioFormats/ap11.html
604* http://sswf.sourceforge.net/SWFalexref.html
605* http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt
606* http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
607* http://developer.apple.com/quicktime/icefloe/dispatch012.html
608* http://www.csdn.net/Dev/Format/graphics/PCD.htm
609* http://tta.iszf.irk.ru/
610* http://www.atsc.org/standards/a_52a.pdf
611* http://www.alanwood.net/unicode/
612* http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
613* http://www.its.msstate.edu/net/real/reports/config/tags.stats
614* http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt
615* http://brennan.young.net/Comp/LiveStage/things.html
616* http://www.multiweb.cz/twoinches/MP3inside.htm
617* http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
618* http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/
619* http://www.unicode.org/unicode/faq/utf_bom.html
620* http://tta.corecodec.org/?menu=format
621* http://www.scvi.net/nsvformat.htm
622* http://pda.etsi.org/pda/queryform.asp
623* http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm
624* http://trac.musepack.net/trac/wiki/SV8Specification
625* http://wyday.com/cuesharp/specification.php
626* http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html
627* http://www.codeproject.com/Articles/8295/MPEG-Audio-Frame-Header
628* http://dsd-guide.com/sites/default/files/white-papers/DSFFileFormatSpec_E.pdf
629* https://fileformats.fandom.com/wiki/Torrent_file