"Hi.Sometime ago I made 2 songs using Anvil Studio.After I converted the midi files to wave and mp3 and copy to my memory stick.A problem with my laptop made me re-install windows xp and loose the midi files.Now I just have the songs in mp3 but I want to open again with Anvil Studio to make some changes.I tried to convert to midi again but it didn't work well.Any help will be truly welcome.Thanks"

Have you tried converting to "wav" files ? According to their site you can use those also.

Anvil Studio Catalog

Hi, thanks for answer. I can convert to wav and Anvil Studio can import the audio file (just one minute), 60 minutes with optional multi-audio 1/8 accessory, but this way all the tracks are mixed in one and I need drums, bass, guitars,etc. separated.