WMP will not play various songs in my music library.

First the problem:
Random songs will not play in windows media player. Mostly it's whole albums, sometimes there is a single song from an album that will play, it seems random. It's not just one type of music it is various types. I have some music CD's I loaded up as MP3's and some of those will not work, I also have quite a few Amazon MP3's and some of those don't work either. On a side note I can play all my music in VLC, it's just a pain having to reload all the playlists and songs.

What may have led to this:
I recently purchase a LG Blu Ray multi Disc player/writer with M disc support. Obviously it didn't come with any software. I figured, incorrectly, that I could play Blu Ray in WMP. I did a search for WMP Blu Ray codecs and found what seemed to be a good one that had codecs for Blu Ray playback in WMP. I installed it and it didn't work.
I installed a trial version of CyberLink's Power DVD 14, it worked but had crappy sound and when asked to adjust my monitors resolution (I said yes) the picture got real choppy and audio was out of sync. I did ask tech support and they referred me to their forums where there is a fix for that, but I need to join their forums to see the fix... I already belong to enough forums and from what I have seen they have horrible tech support on their forums. I ended up running a trial version of Corel's Win DVD pro, which works great, but it is a trial.
It looks like I will be purchasing the Nero suite for Blu Ray play and record functions (I need software that will utilize my LG Blu Ray player/writer to it's fullest), but in the meantime if anyone knows of a free fix to get either media player or media center to play Blu Ray that would be awesome!

Back to the problem:
I uninstalled both the codec pack and Power DVD 14 after I realized I had this problem in WMP, but neither helped.
I tried the corrupted library fix in the windows forums by going into the media player folder and deleting all the files so WMP would reload everything, but it didn't work. I think I probably need to reset WMP so it will clear out any residual codecs left over from that codec pack (if that is the culprit).
Anyone know of a good fix for this problem?
Please Help!
Bruce

It is a LG Blu Ray burner with M disc support, model # WH16NS40.

How do I re-install WMP? I knew how to do it in XP (once long ago) but have no idea in Win 7.
EDIT: ICit2lol I like your sig, especially the quote at the bottom...lol.

Thanks, I am still having this problem and I didn't know there was a reply to my last post. I contacted MS support and they wanted to charge me to fix the issue. I said I don't have that kind of money and they gave me some links that for the most part led to broken links or were links I had already checked out. The link you gave me for the LG Blu Ray software is for the firmware of the player and it is up to date. I had already checked that out. I had also already tried the "rebuild corrupted library" fix as I knew of that from a previous "corrupted library" problem. Just before coming to check this post out to add some more info I removed the media player from my services, unfortunately it didn't work. So I am left with doing a manual install, of which I hope the link you gave me to that dl will do all the work for me. Because unless it is in the "uninstall programs" list then I have no idea how to un-install WMP.

Bruce

At this time I need all the help I can get. I will wait and see what you find out before I do anything. Right now I can use either VLC or foobar2000. Both are good programs but I WMP does everything I need it to (except play Blu Ray).

Bruce

I have a great Blu Ray drive (an LG 16x), but WMP (windows media player) will not play Blu Rays. I thought I found some codecs that would allow it but nothing works. In fact I think it was those codecs that screwed up my WMP. I am currently using a trial version of Corel Power DVD. I plan on purchasing the Nero 12 Platinum suite in the next month or so.

Bruce