After downloading probably too much songs on kxmp 1gb player it now will not switch come up main menu when turning on OR register on the computer it previously did? I am lost as how to delete some items or to get the thing even registering

it says how much it hilds but thats only an estimate based on the average lenghth of songs if you downloaded some songs longer than others it cant hold them

Turn the hold switch from on to off, a few times and leave it in the off position.
Then press and hold down the center of the main button and the menu button at the same time. Hold them down for around 10 seconds or until you see the apple logo.
Works best setting it on a desk or table.
It it still acts stupid, repeat this.
This procedure is called a hard reset. I would get rid of that song too. Its probably corrupted. If its itunes music, they won't charge you.

From the computer - use Windows Media Player to delete - higlight song name ON THE PLAYER ONLY LIST, NOT ON THE WHOLE COMPUTER LIST - click 'delete' button on your keyboard

Unfortunately, in the state that it is in, the songs will be deleted, b/c all of the recovery methods result in all osngs being deleted. Sorry.

Try this: disconnect the player from the computer, 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.
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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/Retail/DriverDownloads.aspx
or
http://www.sandisk.com/DriverDownload/driverList.asp
-Tha Mp3 Doctor

look on inet for firmware and reflash device probably bugs in ther machine mp3 player type in model number on inet

There are a few different ways to delete songs off your player.

Preventive Medicine: To prevent Windows Media Player from adding all of your My Documents files to the Sansa player every time you connect the Sansa to the computer - 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 "Set up Sync". When a window pops up, uncheck the box that says "Sync device automatically".

Quick Method 1 - 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.

Quick Method 2 - 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/Retail/DriverDownloads.aspx

Slow Method, allows more control over what gets deleted: In Windows Media Player 11, the files are organized by Music, Pictures, Videos, Etc. First, you will want to plug the Sansa player into the computer. Then click the Library tab in Windows Media Player. You will most likely be in Music view. You will see two sets of folders in the left-hand side of Windows Media Player. The first set are all the files stored in your computer. The second set of folders underneath the line that says Sansa 1GB Mp3 player (I forget the exact wording) has all the files that are stored in your Sansa player. Click on the "All Songs" folder. You can individually delete all the songs that you want by left-clicking once on the song name in the middle of the Windows Media Player window, and then pressing "Delete" on your computer's keyboard. You will have to repeat this process again for images, videos, etc by clicking the little arrow next to the picture of the musical note on the upper left hand corner of Windows Media Player, and expanding the dropdown menu, and selecting "images"...then "Videos" etc.
NOTE: After plugging in your Sansa player, if you see a message that says "Connect a Device" in the Sync tab on Windows Media Player, then the cmputer is not properly recognizing your Sansa player, and you may need additional instructions from me.

-Tha Mp3 Doctor

The following procedures will erase all songs on the player.
Check if the file system is NTFS. If yes ,format it to FAT or FAT32. - Connect player to computer, click my computer, right click on icon of mp3 player and select format.
You can also format the player in Windows Media Player tiself.
Connect your Mp3 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 "name of Mp3 player here 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
You may also want to check
http://support.rcaaudiovideo.com/downloads.aspx?product=25
for any firm updates - the above procedures in some cases undo the original formatting on the player, and a firmware upgrade will be required to replace the Mp3 player's formatting.
-Tha Mp3 Doctor

There are two ways to format an Mp3 player - one on the computer itself, and one in Windows Media Player. Both methods will end up erasing all the songs on the player, but the player will be "good as new" after that. Sometimes reformatting in this manner will override the player's native formatting and cause problems - this can be reversed in most cases by updating the player's firmware. Firmware upgrades are available from most manufacturers' websites.

WARNING: The following procedures will erase all songs on the player.

Check if the file system is NTFS. If yes, format it to FAT or FAT32. - Connect player to computer, double-click my computer, right click on icon of mp3 player and select format. This only applies to Windows-based computers.
You can also format the player in Windows Media Player itself:
Connect your Mp3 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 "name of Mp3 player here 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
-Tha Mp3 Doctor

I’m going to give this to you in Hong Kong English J
http://www.jnc-digital.com/jnchk/eng/sns/faq/ - JNC website will answer all questions
Most of customer who case this matter, when they are still download or upload the data, which once case the system hang. Most of customer, accord to the following steps to format their mp3 player once, which can help them to solve this matter.

• 1.Install the battery, Press and hold the “MENU” and “REC” button at same time to turn on your mp3 player.
• 2.Then you can see “MP3 PLAYER MATE V1.000” on the screen. But please remember don’t release the “MENU” and “REC” button.
• 3.Until the player enters to the MP3 mode. Then you can release the “MENU” and “REC” button.
• 4.Complete.

If there is no any improvement, please repeat step 1 to 3
-Tha Mp3 Doctor

Try this: disconnect the player from the computer, 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.
-----
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/Retail/DriverDownloads.aspx
or
http://www.sandisk.com/DriverDownload/driverList.asp
-Tha Mp3 Doctor