I am trying to download from my computer onto my new mp610-g and when trying to play the downloaded files, get the format error. what do i need to do?

Hello,
The support site for the MP610 can be reached here:
http://www.cobyusa.com/?p=prod&prod_num_id=212&pcat_id=1001
Under Downloads there's:
A firmware update for File Sys Error and a video converter for converting videos before transferring them to the player.

To get the matching formats for the player:

1. Get the video converter for the MP610:
http://www.cobyusa.com/files/software/VideoConverter_MP610.exe
For getting this execute file right click it and select "Save Target As..." for saving it to location on the computer. Use the converter
for all videos before transferring them to the player.

2. Use the Coby Media Manager for transfers of all media.
A download for this Media Manager can be found here:
http://www.digdash.biz/product/coby/coby_media_manager/install/coby-mediamanager-2009b0924.exe
For getting this execute file right click it and select "Save Target As..." for saving it to location on the computer. After that run the execute file to install Coby Media Manager.

For a setup of your player in the manager:
Run Coby Media Manager
Select in Tools > Device Manager... in the devices list the MP610.
Add the MP610 to the favorite devices.
To setup the output file format for the MP610 select under the DEVICE menu in Coby Media Manager the Device configuration.
Setup format for video is MTV (cannot be changed for the MP610)
Setup format for audio is selectable 96 kbps; 128 kbps; 192 kbps.

When this information helped, I'd appreciate your vote.
If you need more assistance, just add a comment.