You can save to cd or dvd you would just need to burn it as data and then that cd/dvd will be like a virtual drive and you will be able to drag and drop your files on to whichever computer your using, then drag and drop into your mpc via usb....
only negative to this is the fact that any changes or updates you make, you will then need to RE-burn another cd/dvd with the changes and throw out the old cd/dvd and keep the updated one...
this can get pretty costly in the long run but it myte be a crutch until you get your hands on a CF card with a gig or 2....would be 100000 times easier with a CF card or hard drive but like I said as a temp that would get u by...