Mp3 player wont read sd card

The card you are trying to use is likely a high capacity sd card (SDHC). This player does not support high capacity cards, it only supports microSD cards that are non-high capacity (I think most of them are usually 2GB or less, but you can find them up to 4GB).

insert the mini sd card when the player is swiched off then turn on the player and try

The problem was the card was inserted properly. Just a mere incident of stupidity but make sure you here a click from the card and it should read it.

I have the same player, you must insert the mem card until it clicks into place, this locks it in the player and should take care of the prob. Just keep pushing til you feel the click.

It will support earlier Sandisk 1GB and 2GB micro SD cards

Sometimes there is a maximum size limit to the type of card it will read - the SD card cannot have a bigger storage capacity than the player itself usually

Check the Sansa tutorials at http://www.sandisk.com/Retail/Default.aspx?CatID=1468
to make sure you have followed all the steps first.

In my experience, every mp3 player/photo frame/etc with a card reader has a MAXIMUM memory limit for the type of card that it can read. It is possible that the Sansa player can only read 2GB Micro SD cards or smaller - and thisi nformation may not have been available when they printed the manual. If you have followed all instructions, and it still will not read the card, try switching to a 2GB Micro SD card.

SD card = too big for player to read. Get a smaller SD card.

Was the SD card in the MP3 player when you loaded the songs or did you load them some other way?  You may have to first put the SD card in the MP3 player first, then load the songs onto the player.