MyMPx.org - Identify an MP4 Player

Hello, everyone !

I found this site by chance, and it's amazing ! Thanks for all the infos !
I've formatted back to it's real size my mp4 player (then it's really a 4GBytes player, not a 8GB :cry: ), but now I'd like to upgrade it (my Fm radio hangs as soon as I activate it :( ). The problem is I don't have any clue about the chipset.

In the info I've 4 lines:
2007/06/06
JK_AT25C_802
2007/11/23
ACT1025_S75

and by the way, I've found a picture in your Gallery but the description is very light : Picture

Here is the description I got from E-bay seller :

1.8" TFT LCD screen
Build in (JPG, BMP) Picture browser
Supports MP3, WMA, WAV format
Video Support: AMV format, provide software to convert video to AMV movie format
Repeat modes: Normal, Repeat One, Repeat All, Folder, Repeat Folder, Random and Intro
Equalizer settings: Natural, Rock, Pop, Classic, Soft, Jazz and DBB
Display ID3 Song Title and Lyrics
Built-in FM Radio
Digital recording: records with the integrated microphone
Ultra-High Quality Stereo Sound
Hold up to 2000 songs
Work as a Thumb Drive: File management: manage files with folders as on computers
Built-in rechargeable lithium battery
Built-in 8GB High Speed Flash Memory
Built-in USB 2.0 port: connects easily to your computer with USB cable
Language support: English, Simple Chinese, Traditional Chinese, Italian, Spanish, French, German, Japanese, Korean, Russian, Dutch, Portuguese, Swedish, Czech, Denmark, Polish, Romanian, Turkish, Hebrew, Thai and Greece
Support WINDOWS 98/ME/2000/XP/Vista
Size (L x W x H): 70mm x 37mm x 7mm

Anyone can help ?

Thanks in advance !