ummm... why are you downloading songs at work anyway
the 'disk' would have to be a zip disk or something and that would hold about 20? (5meg * 20 = 100meg) mp3 songs.
you could save onto that and then walk the disk home and then use your cd software to write them as a music disk.
or if the work machine has any kind of burning software you could save about 130 (5meg *130 = 650meg) mp3 songs on cd and walk them home then copy the 10 to 15 you want at the moment onto your home machine so you could burn them as a music cd.
if no disk and no burn software then you need to use a personal internet storage site like these under this yahoo catagory:
http://dir.yahoo.com/Business_and_Ec.../File_Hosting/