Well, I can tell you, I just bought a GBA SP unit (Flame RED) and it's great! The lighted screen and built in rechargeable battery are well worth the extra $$$$$$$! The next day I received the EZF Flash 256 unit also from http://www.link-to-us.com/home.asp let me say, GREAT PRICE, GREAT SERVICE, FAST DELIVERY! I will definitely continue dealling with these people! I don't think the capacity listed for this card takes into account using ziped GBA roms because I was pleasantly surprised to see that I was able to load : Gameboy Advance Games; 1. Castlevania 2. Zelda 3. Metroid 4. Atari Anniversary ED. 5. Super Mario Adv. 6. Super Bubble POP. PLUS I used a utility that creates a GBA rom slideshow from pictures and so in addition to the 6 GBA games listed I also have a little slide show with 6 of my fav pics of me and my wife! The unit works great, the software is very straight forward (JUST REMEMBER: when you have the driver, client running and the cartrige plugged in hold start/pause down when you turn on your GBA unit and the link will be made successfully! I know these people make a good profit on these units but the work as promised and who wouldn't want to carry 6 great games and a slide show in one cartrige? Hell I will never plug in another cart! Go for it, you wont regret it!!!!