this is a good cheap alternative to the official tascam power supply, at least for the DP-008. Input for the jack is slightly shallower than the one on the PSP, so it doesn't feel quite as securely in place as one might hope. However, it's cheap, and it works. Good enough.
Total Length: 1.8m / 6ft
For US 110-240V AC wall outlets
Play your PSP without draining the battery
Recharge your PSP battery (full charge in ~3 hours)
For Sony PSP 2000 & 3000