Hi, I am wondering if it's possible to purchase a keyboard that also has a MP3 player built in.

I want to use these (MP3s) in some instances as backing tracks.

Korg PA2x and PA800 both have optional MP3 players on board.

Liontracs MediaStation also has a wav/MP3 player as standard equipment..

I believe that Genesys Pro also plays audio..

I was thinking you meant arrangers..In fact there are many workstations from Korg, Roland and Yamaha that will play audio files..Like Fantom , JunoG and Sonic Cell from Roland..Triton series from Korg, and possibly the new Yamaha top models..

Thanks Fran for that. I am not sure about the Yamaha, at least as far as the PSR 900 goes.

The Korg PA2x and PA800 models might be the way to go.

Thanks again.

I found the following and it looks the biz, so will look out for one of these.
http://korgpa.com/pa_root/en/products/pa2x_info.html?en

Thanks again.

To add to the above, all Wersi OAS instruments have been able to play mp3 files since OAS 5 (2003) Wav files since launch OAS 2 (2000) and Video files from OAS 6 (2004)
Also from autumn 2003 a CD burner is integrated within the instruments (Previous versions had CD ROMs with burner optional) as well as USB 2. (Previous versions USB 1.1)

Bill