Is there anyway to upgrade the Nextar MA933A MP3 Player

you do not need cd driver, your mp3 player is plug and play type if it connect to computer for more detail see this page
http://www.nextar.com/frontend/mp3_players.asp?MODEL=MA933A-1C

you might have accidentally turned on the security on it..... the simple way to turn those settings off is to go to the properties of your mp3 player and there should be a tab with security or just look under all the tabs and see if there is a security feature on

Just Drag and Drop your MP3 files onto the drive tht was created. Look in "My Computer" for "Removable Disk", double click on it,then copy your MP3 songs from your music folder (right click, copy) and paste them (right click, paste) into the MUSIC folder on the "Removable Disk"

Try formatting the usb on FAT.

you can download the driver @ nextar.com for Nextar MA933A. However it seems you only need the driver for it if you are using windows 98 or windows 200 prior to SP3. At the link above you can also download the manual, and read the FAQ section.

hope this helps.

There are several possibilities:
1) The songs you are trying to load to the Mp3 player are not compatible with the Nextar - a good test for this would be to connect your Nextar to the PC, open Windows Media Player, and click the Library tab, then the Sync tab - if a little blue "i" appears next to the song, it will not work with your Nextar. In fact, any song that is not in mp3 format or unprotected WMA (very few WMA's are unprotected unless you Ripped them directly from CD) will not play in the Nextar.
2) You have the Hold switch engaged - unlock it
3) The PC's you are trying to connect it to are running Windows Vista - not compatible with Nextar

-Tha Mp3 Doctor

The songs you are trying to load to the Mp3 player are not compatible with the Nextar - a good test for this would be to connect your Nextar to the PC, open Windows Media Player, and click the Library tab, then the Sync tab - if a little blue "i" appears next to the song, it will not work with your Nextar. In fact, any song that is not in mp3 format or unprotected WMA (very few WMA's are unprotected unless you Ripped them directly from CD) will not play in the Nextar.

-Tha Mp3 Doctor

That player is officially toast. There is no recovery software or firmware upgrades for that device - once the key system file is delted, it cannot be recovered.

download the disc that came with it no matter what windows/mac/lenux version you have.
drag it all out to your desktop.
look through the folders for a program with a rocket ship icon.
open it.
plug your mp3 player into the computer.
select "firmware upgrade" on the computer.
select the newest upgrade.
open it.
then click "upgrade firmware" and it'll be fixed for the system error, but you'll have to re-download the music.

The Nextar plays MP3 format songs while those from ITunes are Mp4a (Itunes/Apple's format). You will need to find software that will convert these. I use AVS4U Software. Available here. http://www.avs4you.com/AVS-Audio-Converter.aspx The software costs roughly $40.

Best of luck.