DVD Ripper Question about h.265 2 pass artifacting and smaller file sizes than 1pass

[Basementjack]

Hi, I'm noticing some interesting numbers when it comes to 1 pass vs 2 pass using a DVD source and the h.265 (non-10-bit) encoder:

It seems 2 pass creates smaller files, but I'm also seeing some artifacts on these files.

Here are some test results:

1 pass:
Using MKV H.265 Standard 1 pass: Resultant video rate in file reported by MediaInfo: 587
Using MKV H.265 High 1 pass: Resultant video rate in file reported by MediaInfo: 1042
2 pass:
Using MKV H.265 Standard 2 pass: Resultant video rate in file reported by MediaInfo: 291
Using MKV H.265 High 2 pass: Resultant video rate in file reported by MediaInfo: 230
Using Custom 2 pass
Using MKV H.265 Custom 2pass set at 800kbps target, Resultant video rate in file reported by MediaInfo: 230


Is there something wrong with the 2 pass implementation?
I don't mind smaller file sizes, but the picture is noticeably worse with many visible artifacts when using 2 pass.

Just wondering if others have seen this, is there a fix?

[Mona]

Hi Basementjack,

We could not reproduce the problem with our source. Please specify the one you have problem with. Also, we need your dvdfab_internal.log file and fabcheck_internal.log file to help check the problem. Thanks.

Regards,
Mona

[Basementjack]

Sorry, this got away from me.
I did exhaustive comparisons yesterday with blu-ray and it's working fine, I will need some time to get back to DVD content. I will report back if the issue still persists.