Unable to burn movies anymore.

I'm having issues burning my movies to DVD's. I have used several different kinds of burning software, I've used different disks, I've tried different movies and different movie formats. All have the same problem, once encoding is done and begins to burn, it stops and finishes and doesn't give me any type of error afterwards so I have no way of know where the issue is coming from, keep in mind I was able to burn on this computer with no problems up until about a month ago.

I'm running Windows 7 Home Premium 64 bit.
Sony Vaio S Series
Intel Core i5-2430M CPU @ 2.40GHZ, 6.0GB RAM
The disk drive is a blu-ray player/burner

Any help would be greatly appreciated, thank you!

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