Tag Problems

My tags ("Artist", "Title", etc.) are not working after using QMP3Gain

QMP3Gain stores "Analysis" and "Undo" information in special tags inside the mp3 file itself. These tags are in the APEv2 format. APEv2 tags are carefully designed to not interfere with other tag formats, such as the popular ID3v1 format.

Unfortunately, some mp3 players do not strictly adhere to the ID3v1 standard when reading tags. As a result, when QMP3Gain writes its APEv2 tags, these mp3 players might get confused and try to read the QMP3Gain tags instead of the regular ID3v1 tags such as "Artist", "Title", etc. As a result, the player will show random garbage in these fields.

(To be fair, the mp3 players that have this problem are actually probably trying to compensate for data corruption that can occur in mp3s due to bad encoders, incomplete downloads, etc.)

If you use QMP3Gain and discover that your mp3 player has this problem, then here's what you need to do:

Select "Options - Tags - Ignore (do not read or write tags)" from the QMP3Gain menu. This will prevent QMP3Gain from writing any more tags to your files.
To remove tags that QMP3Gain has already written, simply load the affected mp3s into QMP3Gain and do "Options - Tags - Remove Tags from files"

IMPORTANT
If you choose the "Options - Tags - Ignore" option, then you will not be able to automatically undo changes made by QMP3Gain. You will still be able to undo any changes, but you will have to manually keep track of what changes you make to your files.