(Make sure your Sansa is plugged in to do this)
If it is, use the Best Buy Digital Music store program. (It should come on the CD that was given with the Sansa) In the upper left hand corner click on File, then go down to "Add tracks to my library" From there, look for your file where all your music from Windows Media Player and from Bearshare.com is, then click 'Yes'
This will get all your songs onto the My Library section. (The MY LIBRARY button will be on the far left side of the screen, in the boxe that says Sources"
Once you have all your songs under "My Library" you can put them into a play list by clicking New Playlist.(In the Playlist box, below the Sources box) To put the songs into the playlist, click on the first song under My Library and hit Ctrl and the letter A at the same time to highlight all the songs. Then drag the whole library and place them on the new playlist you created.
Then go down to the far left side of the page, about halfway down (In the Playlist box) and open up your playlist. Once again click on the first song and use Ctrl+A to highlight all of them, then click "Transfer to Device" it'll be on the right hand side, a little more then halfway up the page, in between the buttons "Share" and "Burn a CD"
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.