Hi I have the dp008ex. This will take up to 32gb sd card. Somewhere on the Internet tascam have a list of all the tried and tested sizes and makes of sd cards which will work for your machine. If you do not have the ex later model i suspect it may be similar anyway but you'll want to fish around on the Internet to check. Do you have the dp008 or the dp008ex. My brand sd I think is SanDisk