Existing users, 
This software works great. I've used it to rip over 60 DVDs to .mp4 for playback on the iPod, including heavy use of the queue for ripping TV seasons with individual episode files. Every once in a while it won't recognize a title on on the DVD, and I'll have to cheat it with MacTheRipper (rip the title onto the HD and then convert), but other than that, flawless.
The one issue I've come across is that on my G5 Quad, it is incapable of utilzing more than 220% of the processor capacity (out of a maximum of 400%). Is it not sending enough threads? what's going on? I initially thought it was because that was the max read speed for my DVD drive, so I ripped the VOB to the hard drive and tried again, but no increase in performance. It's frustrating to rip @ 70FPS in the quad, and see that I've got 40% of the processors unutilized. How can performance be improved?
HandBrake
Universal, highly tweakable DVD/video ripper and converter.
Version: 0.9.3
Multi processor systems
Feedback Type: Commentary
Contributed by: sujovian.mac Thursday, February 02 2006 @ 10:09 AM PST
Product Platform: MacOSX
Used Product For: 1-6 months
Recommend Product: YES
Comments
Just a typo? - costel_ath
I am using HB on my PB G4, the outcome is good but is very slow (I get only 7-8 fps) using 80% of the procesor (1.3 GHz). I see that you can use 220-400% of the procesor! Is just a typo or you really can go over 100%?Tuesday, February 21 2006 @ 05:55 PM PST
Just a typo? - corradokid
Each CPU = 100%Quad G5 = 400% total
Thursday, February 23 2006 @ 09:26 PM PST
Multi processor systems - stargator_mac_com
ripping from disk is faster. On a quad you can start two instances of handbrake to make two dvd conversions simultaniously.Friday, February 24 2006 @ 12:26 AM PST
Multi processor systems - sujovian.mac
Interesting you mentioned that. I have tried ripping from disk, but it's only marginally faster (5%) if at all. Obviously, because there's a ton of processor capacity left idle when handbrake is encoding on the Quad, you can run multiple simultaneous encoding tasks. I have not tried encoding two Handbrake tasks at once. I have, however, tried a handbrake encoding task and an itunes video encoding task at the same time. here's what happened:Handbrake (alone): 180% processors... iTunes (alone): 125% processors.... Handbrake (w/ iTunes running): 95% processors... iTunes (w/ Handbrake running): 45% processors.
It frustrates me, seeing all this idle cpu time. Isn't this why I bought the QUAD?
Thursday, March 02 2006 @ 04:48 PM PST
Multi processor systems - Dester Wallaboo
Experienced the same issue on our Quad G5's.Reply to This
Tuesday, February 14 2006 @ 12:37 PM PST