I picked up a backlit SP earlier this month and I've been looking at my options for backup carts, probably for the first time since I picked up a 3-in-1 maybe half a decade ago. The choices, as far as I can tell, are fairly narrow anymore: - The EZ-Flash IV is probably the best value for the money at $40 or so on a few Chinese sites, but I've heard about issues with microSD adapters and the onboard NOR occasionally. Can't beat write speeds, either; copying to a mini/microSD is about as fast as you can get, although I've really always preferred carts I can write directly to over SD-based carts. - The Supercard miniSD (or clones of it, anyways) goes for $17-25, and honestly the slowdown on them isn't what turns me off so much as the saving methods. I had a USB-based N-Card for the DS; the save battery died after a year and I'd never remember to power-cycle or soft-reset to backup the save - I imagine I'd have the same issue here. - I've actually found a few sites selling the 128M Fire Linkers for around $10-15. Not bad for a single-backup cart, but even if I didn't want to play games or hacks larger than 16MB, I'm not sure if the writing program and drivers would work on Windows 7, or if I even have a printer port on my latest PC. I seem to recall a modified 3-in-1 writing program that could write to them from the DS, but my DS and Lite are long gone. - The few sites that have any stock left seem to be clearing out 512M NeoFlash carts at around $50 or so, and NeoFlash's store seems to have the 1G cards at $60, although I've never heard much good about them. On the other hand, I've never heard anything bad about the GBA compatibility either. USB writer means that I could probably eventually get it to work on a modern PC, too. Strangely enough, the bulk price from NeoFlash's own store seems to be $13/18 a piece for orders of 10 or more 512M/1G carts respectively, although that adds around $5 a piece in shipping versus the free shipping for a single cart. Probably a site glitch, but it'd be interesting to try and get a group buy together to see what'd happen. Anyways, barring trying to get a group together to buy shady Neo carts, it looks like the EZ-Flash IV is the only real option anymore. I remember hearing good things about the E-Link, and I even saw a few as recently as a year or two ago, but they seem to have vanished completely. Are there any other decent choices around?