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Some files with ReplayGain added to MP3 data by Foobar2000 won't play

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mypod:
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Llorean:
If you have replaygain data in the tags and the MP3 data, you do realize that means a player capable of using the tags will then be playing the files incorrectly because the gain is adjusted twice (once by the player, and once in the MP3 data) right?

As for what's happening, if it's only some modified files that don't work and not all of them, odds are good you'd need to provide a sample of a non-working file for someone to look at and see what's going on. You'd do this by filing a proper bug report. Files with gain added to the mp3 data should be valid MP3s, but you may want to see if a more verbose MP3 decoder of some sort (I couldn't recommend one) identifies them as having problems. It may be that some players are more tolerant of problems where Rockbox just skips problematical files, or it may be that the files are fine but Rockbox doesn't think so because of a bug in it. More info is basically needed.

saratoga:
I can duplicate the problem.  Looking at libmad, it reports that the header is broken.  ffmpeg decodes the file, but with some weird debug output.  Most likely theres something wrong with the file originally, and foobar's attempt to hack up the bitstream with replaygain cannot deal with this properly.  But you'd have to find an mp3 expert to be sure. 

BigPapi:
I've always just done the "Scan per-file Track Gain" option in Foobar2000 and click "Update File Tags" and it has worked fine.....so I don't understand why you would even want to apply that ReplayGain info to the MP3 data itself. ???

mypod:
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