blu-ray burn problems

[fusion99]

Hi

Ive been using the following guide to author my bluray discs but im having trouble when it comes to burning them.
http://corusa.com/blog/2009/06/25/blu-ray-backup-guide/

The guide says to crunch the films down to fit on a dvd5 but i think the quality lose becomes to noticable at this size so ive been crunching to dvd9 size, but when i try to burn to a dual layer + disc it often stalls at 89% and doesnt start again, on the odd occassion it does go onto 100% but im going thru alot of discs, does anyone know why this is, im using a pioneer 203A and burning with the latest copy of imgburn.

Cheers Danny

[jman98]

What brand of DL discs are you burning to? We ONLY recommend Verbatim DVD+R DL discs. If you are using anything else, you wasted your money. What speed are you burning at? I personally won't burn DL discs at any speed above 4x. Using a lower speed could be helpful, but you need to use Verbatim discs for sure.

[fusion99]

I have been using datawrite discs but i will try some verbatim discs now you have said that, also ive been using the automatic write speed setting on imgburn but im currently trying the slowest write speed for these discs which is 2.4 to see what happens

[fritzi93]

Yeah, for DVD+R-DL, use Verbatims only. If they don't work, maybe you need a new burner. You're using ImgBurn, that's good.

As to quality loss, not to belabor the obvious, but it depends. If you keep the bitrate above 4,500 kbps and your HDTV is, oh, ~ 54-55'' or smaller, you may find a BD5 backup acceptable. That translates to a movie of 1 hr 55 min or less, with audio re-encoded to 448 kbps. Movies with a lot of movement and dimly lit scenes will need more bitrate, of course.

Then again, many Blu_Ray transfers are not all that good IMO and re-encoding to 720P can produce a backup not too far inferior to the original. The movie Predator is a prime example. In that case the film stock used was the main problem, chosen because of difficult conditions on location. For other movies, the transfer is simple badly done, with excessive edge enhancement and DNR.

You might try experimenting some and compare to the original.

Good luck.

[fusion99]

Just done a burn at 2.4 and its gone fine will try a reduced speed til ive used up these datawrite discs.

I agree with the transfers not always been that good, ive noticed a few ive been able to get away with on a dvd5 but others have looked terrible even on a dvd9, as you say probably down to a bad transfer rather then the size im crunching to. If only blank bur-rays where cheaper!