Window media player wont play music,

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.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

http://support.ornj.net/topic/playlist-wont-open-in-external-media-player

click this link and read the solution posted by mark

Hi catie0077...

Thats becausethe tunes that you download are probably Itunes, and Itunes has a DRM on all movies/music/music videos.
What that means is the music will only work when they are in Itunes or are on other Apple products,like Ipad,Ipod,etc.
You will need to convert those songs from ACC to MP3 or WMA before they will play on your MP3 player.
You can get a free file converter at the following webpage: http://formatoz.com/
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MP3 players can only play music files in mp3 file format. You need to convert your CDs to mp3 music files onto yourcomputer or download them from the Internet and then copy them to your MP3player.
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 music files to mp3 file format:-
http://www.fixya.com/support/r5798418-creating_transferring_mp3_music_files

The songs are in the wrong format - they need to be stripped of their DRM license (illegal) or converted to mp3 format.  The best, most legal way to do this is to redownload the songs as an Mp3 file, or re-rip your CD's in Windows Media Player in Mp3 format.
these problems occur because the user is trying to download a song format that the player does not recognize. Every music file is in a certain format. The most common music file formats are Mp3, WMA, AAC (iTunes), WAV, RA, etc.  In addition, every file format type is in a certain bitrate, size, etc.  By far the most common issue is that the music file contains a license or copyright (especially with WMA or AAC file formats).  Each Mp3 player only recognizes a certain number of these formats. Every Mp3 Player is different. You will have to check your Mp3 player’s product specifications (specs) or user’s manual to find out which formats your particular Mp3 player recognizes. When you try to download or sync the wrong file format, you will get one of the errors that I mentioned above.   If you want to know what file type you have, then you must find the location of the individual music file on your computer, right click the title of the song, and select the option “Properties” from the menu.
Mp3 player product documentation is not straightforward.  If a player supports only non-protected WMA files, it will merely say that it supports WMA – it will not tell which type of WMA it supports.  A player that supports DRM-protected WMA’s will usually indicate such on the box (usually with a Windows Plays For Sure logo – which is actually an ironic misnomer).  DRM stands for Digital Rights Management, and it is a type of licensing system for WMA files.  It is used extensively by mp3 player music services such as Bearshare, LeapFrog, Napster, and others.  Not all DRM licenses are created equal – there are licenses with “play rights,” burn rights,” and “transfer rights.”  Play rights mean that you can only play the song on your PC – it will play fine on your computer, but it will not play in your mp3 player even though it appears to transfer.  Burn rights mean that the song can be burned to CD.  Transfer rights mean that the song can be transferred onto an mp3 player that supports DRM-protected files.  Then, there are unlimited licenses and limited licenses.  Limited licenses only allow you to play a song for a certain length of time. You would have to pay extra to continue using the song after that trial period is over – the time length ranges from a few days to several months or longer.

-Tha Mp3 Doctor

Songs from most music services have what is called DRM encryption on them - it is a license that will only allow you to do certain things with the song. Your songs probably have play rights, but not transfer rights. Upgrade your music service subscription.

Well whats happening is the mp3 player doesnt support that file but if you go to Windows Media PLayer somtimes it will actually change the music format. Or if you're downloading your tracks you could try getting your tracks off cd's. When you downloading songs off the internet I'd suggest using Lime Wire.

Same problem...... Whats up with this...

if you have a error message license error, it means song is not properly authorized to be shared. is this "downloaded song", are they on mp3 format? if they are, try using windows media player, then synch it with the mp3 player. hope this helps!

Yes, It has to do with using napster. When you purchase songs form napster or most other online digital music vendors, the files that you download have digital rights management or DRM for short. In other words the recording companies have limited your rights to use of the files in some way becasue they are worried that you may go and give them to all your friends and they will have lower profits due to the resulting lost sales. There is a license associated with your digital music file. While there are different license schemes, one sure thing is that you can not play the music on a player that does not support DRM. Luckily the H10 is a Media Transfer Protocol (MTP) player, which means that it does support DRM. You must, however, use the right software to transfer the files; Software that will transfer license information to the player. I think Napster can do this itself but I have never used the service, so I can not be sure. The iriver plus software or Windows Media Player 10 and above should also work if Napster is not performing this task properly. I may also be that you must refresh the licenses for the DRM music files on a regular basis or they will expire. Hopefully using any of the above mentioned transfer programs will accomplish this task. Can you still play the songs on your computer? If not then there may be a more serious issue with your licenses. If you see all of these DRM restrictions as the rediculious hassle that they are, the you should know that there are ways to strip this information from your music files, but it's probably against the rules to go into that here. You should be able to find them if you are interested and willing to look hard enough. I hope you get them working properly.