glj123 ,
it is possible to swap the current memory chip in your player for a larger capacity (eg 2GB or 4GB). You'll just need to ensure that the new chip is from the same family series of the current chip, so that the pins are in the same assignment. However, do note that there are reports from other members of legit 4GB players complaining that the player reacts extremely slow. This could be due to the processor's inability to process such a large chip quickly.
gtmaster303 ,
you'll need to format your player using MP3 Utilities Disk Tool, the guide is here
http://www.mympxplayer.org/how-to-re...ck-vt2400.html