Don Lass wrote:
i have no idea about it at all but let me try to understand this. if you have an WMA file somewhere and you want to use it on a Mac you have to convert it beforehand
Yes. Or use a 3rd party application.
WMA is a proprietary Microsoft codec and to use it, it must be licensed from Microsoft.
Windows PCs already have it installed (Windows Media Player) so iTunes for Windows can use it..
and as far as metadata & tags go, what exactly is that and what is it used for?
Tags/metadata is what holds information about a file.
In the case of MP3, AAC, Apple Lossless & AIFF files, these tags are Artist, Album, Title, track # and other info.
If you move these files to another computer or application, these tags can be read and the info is there.
With WAV files, if you move them another computer, the only info available is the filename.