I bought this mp4 player http://www.dealextreme.com/details.dx/sku.1574 i cant watch any video files on this that i convert myself. I am not sure I'm doing this rigth. I can however download samples from here for the rockchip and play them. Can someone give me a step-by-step guide on how to convert fiels so i can use them here. btw this mp4 supports avi.

Hallo Juz098,

most rockchip-players needs xvid-encoded Videos. You could find some Converters like AVConverter, AVIConverter, viDrop or BatMan here in the Download-section. I'll prefer viDrop 0.55 for beginners or AVConverter v1.77.3, if you're a tough Windowsuser who could unhide the hidden Converter.ini and replace this one by the one for RK2608A-Players.

The right values for your 2.4" player should be:

Resolution: 320x240
Framerate: 24 (or try other values from the range of 20 until 30, stepping: 1
Videocodec: xvid
max B-Frames=4 (some Players needs the value 0!)
Videobitrate=350 or 800 (350 @ B-frames=4, 800 @ B-Frames=0)
quant_type=h263 (not h264!)
Audiocodec: mp2 (not mp3!)
Frequency=44100
Soundbitrate=112 or 128

As an extra Mencoder-Parameter in viDrop i'll prefer:
-vf-add expand=320:240:-1:-1:1

Or some players with B-Frames=0 needed the video to be flipped and rotated:
-vf-add expand=320:240:-1:-1:1,rotate=2,flip

Good luck and
rgrds, lca77

Works like a charm thanks a lot!