It's all about PC-version of Grandia II. You can listen perfectly all the music and sound files with your Windows Media Player, but if you try to make something else with them, it will be a problem, 'cause all the music data is in .vms format. Is there a remedy to convert .vms files into .wav or something else?

Thank you very much for your time!

I am sure that you can find a program somewhere which helps to do this. Try searching the web about that file extension and see if you can find any info about it. Always best to do this before tampering with files.