forget psx emulation on your dingoo! i have a lot of handheld players.
dingoo a320, a330, a320e, a380 not worth the money,
the jxd F3000, A3300, 3000, 5000, plays 2D Games with Sound, 3D Games bad,
Yinlips and JXD Android player are better, but who wants this android shit,
A Caanoo with newest reARMed PSX Emu, or a pandora is worth the money
but don't waste your time, use a psp go or 3000 with cfw, best performance, best sound, this is the real deal