best rip using ripbot264

[magmo]

I would like to create the best quality possible when using ripbot264, If I want to mkv files, should I use CQ or 2 pass option?

[Baldrick]

Use Constant Quality if you don't need a specific size. You can try use different cq values, lower value = higher quality but bigger file size.

[magmo]

Ok, thanks

[elJorda]

which value do u prefer ?
is cq 20 good for 1080p or should i use 22?

thx

[FulciLives]

I prefer to use 18 myself

- John "FulciLives" Coleman

[elJorda]

18 is better quality, right
what about filesize. can u say in percent how the filesize is between cq20 and cq18 ?

my machine uses >40h to encode, so its interesting for me and i dont want to encode all settings to test

[FulciLives]

You can just encode the first few minutes and do it once at CQ 18 and again at CQ 20 and see which looks better. I mean CQ18 will always look better but you can judge if you thihnk CQ20 is acceptable to you.

Anyways this is something that I do myself sometimes.

- John "FulciLives" Coleman

[elJorda]

ok ill try it out with a two minutes cut.thx

[KlintIstwood]

Does anyone knows why ripbot is so slow? I've never had the patience to wait until the end. How fast do you usually manage to rip a blu-ray and transform it into a MKV under 8Gb ? For a two hours movie, it usually takes me 6-8 hours with hd video converter, do you have a faster solution?

[herbapou]

Does anyone knows why ripbot is so slow? I've never had the patience to wait until the end. How fast do you usually manage to rip a blu-ray and transform it into a MKV under 8Gb ? For a two hours movie, it usually takes me 6-8 hours with hd video converter, do you have a faster solution?

I juste re-encode sisthehood2, I rip the blue-ray with MakeMKV then re-encode with handbrake, which use 100% of my quad-code cpu. Took 5 hours re-encoding at 1280x720. Blue ray takes very very long time to re-encode. Normally I do DVD's in about 60 to 90 mins.

BTW I did lots of testing and I came up with great parameters to save space without loosing too much quality. I resize 1920x1080 to 1280x720 and re-encode with H.264 at 2000bps. Quality is great and the re-encode is about 3 gigs per movie with 2 audio tracks has I rip both french and english audio.

[Atak_Snajpera]

Does anyone knows why ripbot is so slow? I've never had the patience to wait until the end. How fast do you usually manage to rip a blu-ray and transform it into a MKV under 8Gb ? For a two hours movie, it usually takes me 6-8 hours with hd video converter, do you have a faster solution?

Because you have ancient cpu! End of story! Buy quad core and stop crying! Do you know why quality is so good after compressing in x264?!?! Because It uses alot more advanced calculations which require more "horse power" under your hood. Besides 1920x1080 will always take more time due to number of pixel in frame. Blu-Ray has 5 times more pixels than DVD-PAL.

[KlintIstwood]

Atak_Snajpera, thanks for the advice but I'm already using a QuadCPU for more than a year. With a 2.4 Mhz QuadCore, a Geforce 8800GTX and 6Gb of RAM, I think I have enough power under the roof for the encoding and playing of HD files I was merely trying to see if I was missing something. I have sometimes the impression that only one or two cores are being used instead of 4.

While not bad, 720p is not enough, my TV can handle 1080p and for recent movies you really see a difference. For older movies that have been upscaled, I don't see much of a difference. My goal is to have a file around 5-6 Gb in the end. I have recently discovered MakeMKV, looks promising, I'll try it out this week.

[Atak_Snajpera]

I have Q6600@3Ghz and I'm very happy Why don't overclock your cpu? Mine is rock stable (tested in Prime95 MT for whole night)

[KlintIstwood]

Atak_Snajpera, my answer is ... temperature I have a custom made flat media center case in which I can't use big vents.

[Atak_Snajpera]

WHAT ARE YOU TALKING ABOUT????? I use stock fan!!!! I didn't have to even raise voltage.

[redwudz]

I'm using a Intel Q9300, OC'd to 3.3Ghz, and it still takes about 6 - 7 hours to convert to MKV, two pass for a DVD-9. Blu-ray conversion takes time. There is a incredible amount of data to process. Just run it overnight.

[mkstretch]

Does CQ give you better quality than 2 pass encoding? thanks

[redwudz]

That's hard to answer. Mostly two pass lets you choose the output size, though it takes longer to encode. CQ should give you about the same quality, depending on the setting, but you wouldn't have much control over the output size. If you are burning the RipBot output to a DVD DL disc, then two pass would be my choice. I wouldn't burn to a SL disc if you want to keep most of the quality of the BD. If you have lots of HDD space and don't plan to burn to disc, then CQ would be faster and the quality could be better, depending on the CQ setting you choose.

[miss]

it s possible for the next version make profil x264 choice^^

[FulciLives]

You should get very good results at single layer DVD size (4.37GB) if you do 720p but if doing 1080p then I would go for dual layer DVD size (7.95GB) otherwise quality will suffer. Assuming this is a standard length movie etc.

I suppose something short-ish (like 60 minutes or so) could be done at 1080p on a single layer DVD (size wise).