When I try to use replaygain on an MPC file encoded with v1.15v, I get the message "Can't decode file". I have not tried with an older version of mppenc.

I thought that ReplayGain was just for MP3's. That's what the page here at HA says. Did I miss something??

I've just done 5 albums this morning without a problem. I've reloaded the tags into foobars database just to make sure, too.

Yes you did.

ReplayGain works on several file types. MP3, MPC, OGG Vorbis, FLAC, WAV (although irreversibly) are those that I remember but check the Wiki here.

Furthermore, with Foobar2k you can apply RG to pretty much whatever file you have (unless I'm mistaken...).

replaygain.exe is a Win32 Replay Gain scanner binary executable for Musepack files.

That's all I know. If someone knows where you can download it, could you add it to http://en.wikipedia.org/wiki/Replay_Gain please?

http://www.rarewares.org/files/mpc/replaygain.zip

edit: I included it in the Wiki (with the info from RW)

Well, this is easily explained. Replaygain.exe can't find mppdec.exe (the MPC decoder). Download the decoder from this thread and put it into the same directory as replaygain.exe or into c:\windows\. Then it will work again.

Looks like packing a readme.txt is a long-lost art.

Thanks again everybody.