It did take an unusual amount of time to copy and burn ( 3 hrs. 15 minutes).
I checked your log file - Transcoding took roughly 1:35h and burning took another 1:41h.
The transcoding speed is a bit slow, but in a normal range.
And burning: that's roughly 2x burn speed, which would be normal, in case you were writing to a BD-RE.
But it seems to be a bit less than 2x burn speed, something around 1.7x - may mean, that there were a lot or re-write attempts, so it could be a "weak blank".
You didn't post the whole log file (.zip), only the text part. So I can't see the burning part.
You say that the cpu usage should be over 90% when using cloneBD? I find that hard to believe, especially since I am running an Intel i5 quad core processor clocking at 3.2ghz with 16gb ddr3 ram. I ripped two BD's one being the legend of tarzan and the transcoder was turned off (disc size 37GB) and the processor was running at about 20-25%. Why would the processor be maxing out on the X-Men Apocalypse and not the Tarzan disc?
That's simple. You're probably assuming, that writing to a BD-RE DL will always be possible without compression, but that's not so.
The original disc (BDROM) has a slightly higher capacity, than a double layer BD-R(E). (BDROMs in general have a bit more max capacity).
According to the log file,CloneBD had to re-compress the size to 98.41% in order to fit the content onto the disc.
By that, the transcoding engine comes into play and that, of course, requires a lot of CPU power.
When the hardware accelerated version of CloneBD comes out, things are going to change a bit.
Even when transcoding, you'll be seeing a CPU usage of 5-20%.
"Intel i5 @ 3.2GHz" doesn't tell the whole story, it depends on the processor generation denoted by the 4 digits after the "i5" - but I'm assuming, you're probably somewhere around the Skylake area (core i5 6xxx), so your on-board Intel GPU should be supported by CloneBD's upcoming acceleration.
Anyway - then transcoding should be just as fast as copying.
I'm going to move this to the CloneBD section, as this thread is more of a CloneBD topic.
Side note for those who are interested in what to expect from the hardware acceleration. I've run some benchmarks with an internal test version, that Elby provided us with:
- Intel i7-6700 with integrated Intel HD 530 GPU
- Source and destination both SSD to reduce I/O impact on speed
- AVC 1080p to MKV 1080p (compressed down to ~75%), 1:59h video duration
- "conventional" transcoding in software mode:
92 fps average @ 90% CPU, total duration: 31 min
- acceleration with on-board Intel HD530:
209 fps @ 24% CPU, total duration: 13 min
- acceleration with nVidia GeForce GT 740:
123 fps @ 7% CPU, total duration: 23 min
- acceleration with nVidia GeForce GTX 950:
308 fps @ 17% CPU, total duration: 9 minutes!
So, the type of graphics adapter does matter quite a bit, as you can see. Note that the GTX 950 costs around 140-160 USD, so it's still affordable.
Note that AMD cards will be supported as well, so nobody will be left out, but the implementation was not ready at the time we tested this.