And smu is very correct, in that neither Hijack nor the player care which drive the *0 and *1 files appear on. Both pieces of software simply treat /drive0/fids and /drive1/fids as a single combined directory when looking for fids, even though they are actually two separate directories which happen to be on separate filesystems. The code for this looks like:

if (fidfile not found on /drive0/fids) then

    look for it on /drive1/fids