It really depends on what you are going to use this device for? If you
want music, MP3. If you want to storre files, flash drives. If you
want to used a program on multiple PCs, without have to install the
program on each, U3.
Please note: U3 is only supported on Windows XP (or Windows 2000???)
If you use other computers (Windows ME/9x, Mac or Linux based) U3 is