Hello,
best two internal BD-Burners at the moment are the Pioneer BDR-203 and the LG BH08LS20. I can quote the performance on both as I have both in one system!!

There are others, but these are the best sellers due to the reviews they have gotten from tech testers etc.
Anyhow, both are very stable, both write BD-R's (25GB) at 8 speed, and I have not made any expensive BD-R coasters. Pioneer is probably a better quality drive, however, when burning onto Sony 4x speed BD-R's the LG beats the Pioneer hands down as it will record at 8x speed on these BD-R's whilst Pioneer's will only do 4X speed. This could be attributed to Firmware, but as of yet, the latest from Pioneer does not offer and increased safe speed for recording to these discs.
Further, they both have the capacity to burn dual layer BD-R/RW (50GB). Why stop at 25GB?
Program = 'Bluray to DVD' - Google it and buy it. It will do the job you want, but you may also need AnyDVD HD version - pricey but it may be required to do the job.