Cube Brand CF Card

[nanllyn]

Has anyone know about the Cube Compact Flash Card? I can get a 4G for my AXim 50v for the same price as a 2G Sandisk card. Is this a reliable card? Also I have WM2003 still, I'm assuming I can put a 2G SD and a 4G CF card in at the same time with no problems. I'm wanting to put my documents as well as my GPS maps on the CF and mp3's on the SD card. That way I don't have to change them out all the time.
One last question, recently my lock button on the side no longer works. I can push it to the lock (red is showing) and it still lets me do anything I can do if it wasn't locked. Anyone had this problem. The only time this is a real problem is when I'm using it as a mp3 player and the screen is being tapped by moving around. Very frustrating. My X50v will be 2 years old in December so it is out of warranty.
Thanks for all your help.