Help me with my mp4-player
 

Hello from Russia!
I bought mp4-player Soger A-898 (HuaRuiAn HR-682) - 128Mb + SD/MMC card
http://concom.ru/content/catalog/A898_128big.jpg
and had some problems:
1. Player doesn`t want work with some flash-cards: my "Pretec 64Mb" - invisible in player, my friend`s card "Apacer 256Mb" - visible...
2. Software (from box with player) have many errors and don`t want work. Software name is "DMVConvertor II". Players read only DMV-video... I download from this site "DMV Tools 2.4", but player read this DMV-files (converted by this programm) with errors.
3. Player donesn`s understand text-files on Russian language. How can I teach my player understand this files?

Have this company ("Soger" or "HuaRuiAn") site with firmware?
PS Excuse me for my English.