Copying to ISO BD50 - Video is reencoded

[GomezAddams]

I just bought "A Perfect Getaway" and wanted to create an ISO image for my Popcorn hour. I have DVDfab set to use BD50 media. Before I start the process DVDFab says quality will be 100% and the file size is about 44 GB. But while actually copying the disk I get the following messages:

Video reencode bitrate (23011 kbps)
Source(00124.m2ts)

If I am copying the disk as is to and ISO image of a BD50 disk, why is it reencoding the file.. Oh and before this message I got a No compression needed message for every other file on the disk. Is there some option that I set by mistake??

[GomezAddams]

After posting this problem I think I found the issue.. On the DVD / Blu-ray - Write settings the size of a BD50 was set to the wrong size. I changed the size to 52505 and the problem did not happen when I copied the disk again..
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