good vs hi speed bd-25 option

[jhkilroy]

If backuping up to bd-25 media which is a better choice on the re-encode options, Good or the hi speed bd-25 ? I also use the one pass abr option as suggestion in earlier posts. on my system it usually takes 5 hours or so with either option so I was just wondering what the hi speed bd-25 option did verse the good option.

Thanks

[jdobbs]

"High-speed" uses the "Ultrafast" profile with X264 (with minor modifications made for BD compliance and my own experience). The "Good" setting uses X264's "veryfast" setting. If you look up the two you will see the differences. Generally "Good" uses some x264 techniques that produce better quality at the same bitrate. It does that at the expense of encoding time.

Interesting that on your system they take the same amount of time. On mine "High Speed" is faster.

[rizzo7883]

i do not mean to high jack but is it recommended that we use "(ABR)encoding" if I do backups od blu-ray movies to BD-R25 media?? thanks, riz:)

[jdobbs]

When you are encoding at high bitrates, like those associated with BD-25 encodes, one-pass ABR is fine. When bitrate is challenging you probably never want to use one-pass ABR because you want to take advantage of the wider scope of bitrate redistribution associated with a second pass.

[Ch3vr0n]

could you define as what you see as bitrate high, as i currently have a bd backed up on hd with main video bitrate being 16k + and others being "only"

[jdobbs]

It's a relative term... so there's no real answer. No matter what I said there'd be 40 responses that disagree. :) But BD-25 backups would pretty much all fall into the category of "high bitrate" IMHO.

[Ch3vr0n]

forgot to add "only 4k". I don't care at this point what others will say. I just want your opinion and yours only. You're the dev of BDRB and i very much appreciate all the hard work and time you spend into this application and all for free. Not like that macia what's his name in the debug thread, Keep up the good work. Could you do me the favor though and post your oppinion ? :)

Also. I just aborted a recode in 2nd phase of a 17k bitrate file as it would take 7hrs + (not that i mind the long time, i gotta get some sleep in). I just have 1 additional question. If i were to set BDRB to 1pass ABR (thats what you recommend right ?) would it result in having to redo the entire disc or just that 1 m2ts file or would it continue recoding in 2 pass.

Thanks for your time already and i cant wait too see it out of beta. Its a hell of a lot better then ClownBD and RipBot264. Took a bit of time getting used too but its a great medium till (forgive me for saying this) slysoft comes out with CloneBD (if it will offer shrinking) ;)

[jhkilroy]

forgot to add "only 4k". I don't care at this point what others will say. I just want your opinion and yours only. You're the dev of BDRB and i very much appreciate all the hard work and time you spend into this application and all for free. Not like that macia what's his name in the debug thread, Keep up the good work. Could you do me the favor though and post your oppinion ? :)

Also. I just aborted a recode in 2nd phase of a 17k bitrate file as it would take 7hrs + (not that i mind the long time, i gotta get some sleep in). I just have 1 additional question. If i were to set BDRB to 1pass ABR (thats what you recommend right ?) would it result in having to redo the entire disc or just that 1 m2ts file or would it continue recoding in 2 pass.

Thanks for your time already and i cant wait too see it out of beta. Its a hell of a lot better then ClownBD and RipBot264. Took a bit of time getting used too but its a great medium till (forgive me for saying this) slysoft comes out with CloneBD (if it will offer shrinking) ;)

I have been using the ' good ' option with a 1 pass abr and its been fine with bd-25's. The two pass was taking too long on my system some stuff was taking a full day or more... the one pass on good setting seems to take 4 to 5 hours and the quality seems top notch.

[eTiMaGo]

I've used High Speed (BD25) and 2-pass on the past few discs I have done, and I can barely see any difference with the "Very good" profile that I used to use before... And it truly is (relatively) lightning-fast!