FS#1628 - MP3 Files created will not play on Windows Media Player

Attached to Project: Rockbox
Opened by Anonymous Submitter - Monday, 18 August 2003, 16:22 GMT
Last edited by Linus Nielsen Feltzing (linusnielsen) - Wednesday, 27 October 2004, 08:56 GMT
Task Type Bugs
Category Recording
Status Closed
Assigned To No-one
Operating System
Severity Low
Priority Normal
Reported Version Release 2.0
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


I have an Archos Juke Box Recorder 20 (OS version 1.28)

I have recorded several hours of material using Rockbox
2.0 firmware.

After recording I am finding that the files do not play on
Windows Media Player (I get the message Unable to
initialize file). The files will play on WinAmp.

The files created will also not play on an MP3 boom box
I have.

Is there a way I can fix these files and is there a setting
I can alter to create files in a format that will be
playable by all MP3 Players.

When I create files without using Rockbox firmware the
files seem to be working correctly.

Thanks in advance for your help
This task depends upon

Closed by  Linus Nielsen Feltzing (linusnielsen)
Wednesday, 27 October 2004, 08:56 GMT
Reason for closing:  Fixed
Comment by Anonymous Submitter - Saturday, 06 September 2003, 10:36 GMT

Until it's fixed I've been importing the files to
MP3DirectCut and resaving, which then makes them playable
on win MediaPlayer. Or maybe winamp also has a resaving
Comment by Linus Nielsen Feltzing (linusnielsen) - Saturday, 06 September 2003, 14:48 GMT

The 2.0 version has quite a few bugs in the recording and
file system code. I suggest you use the latest daily build
Comment by Anonymous Submitter - Saturday, 06 September 2003, 19:04 GMT

I forgot to mention that I was using the latest build 9/6.
A test file 22k that MediaPlayer couldn't open was resaved
in MP3DirectCut and was 17k. I was going to attach them but
there doesnt seem to be an option, at least for follow-ups.
Let me know if I should send them on the mailing list.
Comment by Linus Nielsen Feltzing (linusnielsen) - Wednesday, 05 November 2003, 01:09 GMT

Please try the latest daily build.

By the way, the problem could be that Media Player has
problems understanding the ID3V2.4 tag in the beginning of
the file.
Comment by Anonymous Submitter - Thursday, 06 November 2003, 13:12 GMT

Unfortunately the "Class not registered" error still occurs with
files made from latest build 11/5. The directcut resaving
method does strip the tag information from the front of the
file allowing it to be playable. Any chance of adding (yet
another) recording option to leave out the tag?
Comment by Anonymous Submitter - Monday, 12 January 2004, 02:28 GMT

I notice that initial recordings have the tag, but
subsequent ones (pressing play instead of off) leaves it
out and can thus be immediately played on win mediaplayer,
etc. So as a workaround one could make a split second dummy
rec followed by the real thing.
Comment by Anonymous Submitter - Friday, 30 January 2004, 15:27 GMT

Yes, I have seen this too. I was able to change the files
format with MP3DirectCut (http://www.rz.uni- which handles MP3 files directly without
expanding them to WAV and without recoding. Afterwards all
files where readable by Windows Media Player. Looking into
the files showed that a huge header was shortened by the
program but I don't know the exact changes it did.
Comment by Paul van der Heu (paulheu) - Friday, 30 January 2004, 15:54 GMT

Use mp3fixer to remove bad frames, VBRfix will rebuild the VBR
header which might help..
Comment by Steven Weed (sweed) - Sunday, 11 April 2004, 23:19 GMT

Windows Media Player 9 still has problems with MP3
recorded by a Jukebox Recorder V2.
Recording with 1 hour splits,
Media Player was able to play 7 of 45 (including the first 2)
recorded using Rockbox 2.1
and the first 3 in a 20 hour sequence recorded with Rockbox
MP3Gain has problems with the same files.
For some files Media Player claims the file format is not MP3,
for others it merely reports unknown error.
Comment by Anonymous Submitter - Sunday, 13 June 2004, 19:27 GMT

Since the earlier ID3 version was subsituted a week ago,
all recordings play directly in Media Player, so can we
consider this one 'fixed'? Thanks
Comment by Paul van der Heu (paulheu) - Sunday, 13 June 2004, 22:11 GMT

run teh file through mp3fixer to get rid of bad frames, also try
rebuilding the VBR header with mp3 tag studio or VBRfix
Comment by Anonymous Submitter - Monday, 14 June 2004, 00:55 GMT

I'm saying it does work correctly now with mplayer, for me
at least, and if as well for other users (V2,Rec,FM), then
we can close this report. johnD
Comment by Linus Nielsen Feltzing (linusnielsen) - Thursday, 08 July 2004, 09:21 GMT

This is fixed in CVS.