Windows vista compatibility

It may depend on your operating system, but there are known issues in vista. There is also a hotfix from microsoft. This is from the Sansa Website FAQs at http://www.sansa.com/support/sansa_clip/faqs

My Sansa player is not recognized by my computer when I connect it.

The most common reason for this problem is not having the latest Windows Media Player installed, or having a Windows OS version that is not supported by the Sansa player.

The Sansa players support Windows XP SP2 and Windows Vista and above. If your operating system version is supported by the Sansa player:

SOLUTION 1 – Download and install the latest Windows Media Player

SOLUTION 2 – If that didn’t help, and you are running Windows Vista, apply the following hotfix - KB940199

SOLUTION 3 – If that didn’t help, download and Install the MTP Porting Kit (click here)

SOLUTION 4 – If that didn’t help, try connecting the device to the PC using MSC mode

On the Clip: Go to Settings > USB mode & choose MSC

I hope this helps and please don't forget to rate my answer.

u hav 2 blame the company
4 this

First of all, may I ask if you have a mini disc player or a Sansa Clip? Because the Sansa Clip does not play discs of any kind.

If you do indeed have a Sansa Clip you will find the FAQ rather helpful here - http://www.sansa.com/support/sansa_clip/faqs
Question 9 there is regarding devices not recognized by the PC and the solutions are as follows:
The most common reason for this problem is not having the latest Windows Media Player installed, or having a Windows OS version that is not supported by the Sansa player.
The Sansa players support Windows XP SP2 and Windows Vista and above. If your operating system version is supported by the Sansa player:
SOLUTION 1 – Download and install the latest Windows Media Player

SOLUTION 2 – If that didn’t help, and you are running Windows Vista, apply the following hotfix - KB940199
SOLUTION 3 – If that didn’t help, download and Install the MTP Porting Kit (click here)
SOLUTION 4 – If that didn’t help, try connecting the device to the PC using MSC mode

Clip: Go to Settings > USB mode & choose MSC

If none of the solutions work for you, please post the results of your attempts and we can go from there.

Get the Vista-compatible software from Sandisk's website.

These are the most common methods for recovering Sandisk's Sansa Mp3 Players. I have been almost universally successful in recovering Sansa players using one or a combination of these methods. These methods do not work if you are having synchronization or music format issues - they are for recovering a player that will not power up, freezes, flashes, is not recognized by the computer, and a host of other issues.

Reset the Sansa Player first. On most models, restart is done by holding the power button in for 15 seconds or longer. Check your specific manual to be sure. The manuals are available from the Sansa website if they have been misplaced.
Download the Sansa Recovery Tool from the Sansa website.
Format - Erases Everything: Connect your Sansa player to the computer and open Windows Media Player. Click on the Sync tab. Pull down the drop down menu underneath the Sync tab by moving your cursor over the Sync tab and left clicking on the little black arrow underneath the Sync tab. Highlight "Sansa 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
Firmware Upgrade- Erases Everything: Get the latest firmware upgrade from Sansa - it updates the firmware and erases every song in the player all at once. Note: this method doesn't work if already have the latest firmware. Go to this website and click "Firmware Updater" to find out:http://www.sandisk.com/DriverDownload/driverList.asp
If these fail, then:
Try this: disconnect the player from the computer, turn it off, hold in the volume + button, and reconnect the player to the computer while holding the volume + button in. Keep holding the volume + button for an additional 5-50 seconds. Windows should eventually go into recovery mode and revive the player- it will pop up a window that says Found New Hardware Wizard.
If you get the problem where MTP Device keeps popping up continuously, uninstall the “MTP Device” by going to Start à Control Panel àSystem à Hardware à Device Manager (you computer may vary slightly, depending on Windows Version).
You may have to restart your computer after each of these methods to get them to work properly. Disconnect your Sansa player BEFORE shutting down your computer.
-Tha Mp3 Doctor

Get the vista compatible software from Sandisk's website

Code 10 solution - uninstall all of your Sansa hardware completely, and then reinstall it

Double-check Sansa's website to see if they have a Vista-compat version of the software. If they do not, this is going to be a major issue, because you have to resync with Rhapsody every 30 days.

The drivers necessary are part of Windows Media player 10, or higher. As long as you have Windows XP / SP2, or Vista and Windows Media Player, your device will work with your computer.

Hey, the best solution is to switch your sansa from MTP to MSC mode in USB Mode. Its working for me.......

Regards,
Sajith