Player doesn't read 90% of the songs

[Alrainya]

Hello a while back I bought an mp4 player off ebay from china
and its been acting up recently where if i try to sync music onto it its doesn't want to read 90% of the songs and it changes the songs each time i sync it
example: say i want to put song 1 onto my player but it wont do it, but it'll put song 2 on there but next time i go to sync it'll put song 1 on there but not song 2.
it also puts multiple versions of the song on the list so when i sync song 1 in the player itll be
SONG1
SONG1
SONG1
song5
song8
SONG3
SONG3
SONG3

anyway
it looks like this: http://mympxplayer.org/image-full-asp354.html
and it says

mp3 player
LSC_91N165V_A2
9.1.53
2008-02-18
9.1.53
2005-01-09

when i select Firmware version.

Its an 8gb

thanks if anyone can help me.

[lolita]

It is not 8GB.

Open player and find part# of flash chip to confirm.

[admin]

I agree with lolita. It seems you have a hacked player given the signs that it doesn't read 90% of the songs.

What I would recommend is following the steps in this post here: How To: Removing Memory Hack.

Then see how much storage you have afterwards.