Well, I have been using a mixed environment between Linux and Windows for recording, mixing and mastering and so far I have got good results (http://www.artistcollaboration.com/~loauc) That site is aimed to people willing to collaborate and they provide free space (web and ftp), open forums and basically what we are looking in this collaboration thread. Take a look at it: http://www.artistcollaboration.com They have a fast connection and there is a general agreement that mixes are posted as mp3 (or ogg, some prefer that) and individual tracks are posted either as wma or ape (a loseless codec capable of compressing around 25 % of the original wav size). There has been also a discussion about porting n-Track to Linux, it could be what is needed, just hang around the n-track forum (http://www.fasoft.com/) and you'll realize what I'm talking about. FD