How do you download music on mp3 player 5948 monster high

Try manualslib.com

Not a "solution" per se but there is an email for support at the Website for manufacturer Sakar International (assuming the product at this Toys R Us link is what you bought:http://www.toysrus.com/buy/mp3-players/monster-high-4gb-digital-mp3-player-with-video-59048-tru-11129829)

http://www.sakar.com/support

You can probably obtain either a direct answer or a new .PDF copy of the manual by emailing them. I was unable to locate the product on their Website though so I suspect it may be a product they no longer support. :(

Good luck

Just download music to computer and transfer music to MP3 player with the help of SD card. Just follow the below steps to download music.

YouTube MP3 is an easy-to-use online free internet music downloader. You don't need to download or install the software and you don't even need to register online. What you need to do is simply paste video URL into this free internet music downloader, then you can get MP3 file as you want. As it is platform-independent, it is not limited to use on different devices like Mac, Linux PC, Windows PC or phone. One thing to be highlighted is that all converted MP3 files are in high sound quality with the bit rate of 128 kBits/s. Now let's learn how to download music from internet for free.
1. Enter the website: http://www.youtube-mp3.org/ .
2. Paste the video or audio URL into the search box, then click "Convert Video".

3. The site will start to download free music to computer from internet. After it finish downloading, you can tap on "Download" to download free music to computer from internet.
For more methods, check: How to Download Music from Internet

You can download music on computer and then transfer music to SD card which you can insert it into your MP3 player. Just follow the below steps.

YouTube MP3 is an easy-to-use online free internet music downloader. You don't need to download or install the software and you don't even need to register online. What you need to do is simply paste video URL into this free internet music downloader, then you can get MP3 file as you want. As it is platform-independent, it is not limited to use on different devices like Mac, Linux PC, Windows PC or phone. One thing to be highlighted is that all converted MP3 files are in high sound quality with the bit rate of 128 kBits/s. Now let's learn how to download music from internet for free.
1. Enter the website: http://www.youtube-mp3.org/ .
2. Paste the video or audio URL into the search box, then click "Convert Video".

3. The site will start to download free music to computer from internet. After it finish downloading, you can tap on "Download" to download free music to computer from internet.

For more methods, check: How to Download Music from Internet

MP3 players can only play music files in mp3 file format.You can download mp3 music files from the Internet toyour computer and then copy them to your MP3 player using the USB cable.For your CD collection, you need to convert your CDs tomp3 music files onto your computer or download them from the Internet and thencopy them to your MP3 player after you have connected the USB cable tothe MP3 player and the computer.
You can do this using Windows Media player and Rip the CDs - Media Player willcreate a MP3 music file for each music track.Click on this link for instruction on converting musicfiles to mp3 file format :- http://www.fixya.com/support/r5798418-creating_transferring_mp3_music_files

You Can Download Free MP3 From Youtube By This Site : video2mp3.net
If you didn't found Your Favorite Music In Youtube Try These Sites : Beemp3.com or 4shared.com

Thanks , accepte my greetings

try formatting the player

When you download songs, save it first on your My Music folder for you to easily track the song list. Once you have successfully downloaded the songs, insert your MP3 Player. Format your MP3 Player first by right clicking the drive and click format. Once it is formatted, Copy the songs from your My Music folder then Paste it on your MP3 Player drive. 
*Note: Try to play your saved song in your Windows Media Player if the song is working fine before you copy it on your MP3 Player.
Drop a comment if you still have questions. I would be happy assisting you.

Your vote is highly appreciated.