1.You can try to burn a regular Audio CD on an CDRW but there is a difference between the Xbox Drives because some can read the RW format and some couldn't.
2.Yes there is a directory on the Xbox that you can dump your .wma files into BUT its not a 100% guarantee that your xb can play the songs than and yes that requires ftp access.
Thats complicate but i know the following: every time you copy a original soundtrack from an orig. CD the xb creates subdirectorys in e:\TDATA\fffe0000\music.
On your first soundtracks im sure its common that the names of the subdirs. are "0000","0001","0002" but its not sure that the next is "0003".It can be "000a" or "000f" and then "0010"... and thats the point the xb generate this subdirs randomly that sucks.
And the same shit happens on each .wma file in the subdir .
Thats makes it impossible to add a song manually in the subdir because there are so many possibilities that a song can be named.
Hope this helps you a lil bit
Oy...yeah that answers my question...
Another one though: I have a Thompson drive (the crappiest one of the three)...do you know if CDRW audio burns will work with it?