Mac Pro Slow While Encoding DVDs

Discussion in 'Mac Pro' started by Shelton, Jul 29, 2008.

  1. Shelton macrumors member

    Feb 16, 2008

    I've just started a project that requires encoding and burning about 30 DVDs. It is not a professional level project, so I am just using Toast Titanium 8 for authoring and burning the DVDs.

    The problem is when I encode the DVDs. It takes around 3+ hours to encode the DVD and my computer just crawls to a snails pace when I do it. I can barely browse the web when I am encoding -- if I am scrolling down a page, it keeps scrolling for probably 20-30 seconds after I stop. There is tons of lag / delays even while resizing and moving windows.

    The activity monitor says I am only using about 40-50% of my CPU while encoding. I also have over a gig of ram free and no page outs. I have an 8 core 2.8GHZ Mac Pro with 4 gigs of ram. The CPUs are running at 50-55C. I am using Toast to encode around 4 hours of video on each DVD (Quality isn't all that important on this project).

    It shouldn't be doing this, I don't think. Any suggestions?

  2. Shelton thread starter macrumors member

    Feb 16, 2008
    Fixed it.

    I upgraded to Toast 9 and the problem went away, so I am assuming the issue was with Toast and not my Mac. Now I can encode two DVDs at once and watch movies at the same time.
  3. Shelton thread starter macrumors member

    Feb 16, 2008
    Wow, there was something seriously wrong with Toast 8. I'm encoding 3 DVDs at a time, and doing TONS of other stuff, and my computer feels totally normal. This thing is a beast!
  4. Michael73 macrumors 65816

    Feb 27, 2007
    RIP then Encode

    I ALWAYS encode from Video_TS and not from a disk itself. Your computer can encode faster than the disk can spin. I RIP using MacDaRipper, encode using Handbrake, burn using Toast 9. It also helps to spend the extra $40 to fill your second drive bay with a second burner.

    Handbrake may be a better bet for encoding since it's multicore enabled. I regularly do 2 pass encodes with the first pass pushing 250fps. Handbrake also has a nice queue feature so just line 'em up and let her fly.

    Probably not the most recommended way, but you can also select the application and hit CMD D to create a second, third etc. instance of the application to really parallel process. I did that with Toast so I can burn to each of my drives simultaneously.

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