Creative Zen MP3 problems, help plz

Well I bought a creative zen mp3 a few months ago, haven't had any problems with it, I just added about 30 songs, after that, I couldn't play any tracks, I turned it off, and turned it back on and like 100 tracks got deleted.
can any one help plz?
Only reason this might be happening, It's cus I took out the memory card yesterday by accident, I didn't even knew it had one, but I was holding my mp3 and pressed on it and it popped out, I put it right back in, but after that It kept working fine.
Until this morning it just stopped.
Can any one plz help??? I listen to it like 20 hours a day, 24 If I had the chance to, and I'm really gonna be bored with out it, until I buy a new one, which might take weeks

 

Hi, welcome to TSG.

Try the Creative MP3 Player Recovery Tool.

There's a good possibility that the music files currently on the player and expansion chip will be lost, so hopefully you have backup copies.