Will quality be worse when using external Hard Drive for Elgato EyeTV 250plus?

Discussion in 'Mac Accessories' started by Ramius, Feb 22, 2010.

  1. Ramius macrumors 6502

    Nov 2, 2008
    I have gotten an external hard drive for my MacBook.
    Plan is to use this for recording video files to, with my external tv-card; Elgato EyeTV 250 Plus.

    I notice that writespeed through USB2.0 is not so fast, when it comes to large files. And the question is, will this handicap recording quality?

    Since the TV Card cant write faster than USB2.0 to the hard drive, will it compromise and reduce quality?

    Its a Western Digital My Passport Essential 1TB if anyone wants to know.
  2. billib macrumors member


    Apr 23, 2009
    Quality should be fine.

    Let me describe my setup:
    1. Mac mini, 2.33 Core2Duo Proc.
    2. 2 GB RAM
    3. FW 400 External 2x2TB, HD
    4. Elgato 250 Plus
    5. Elgato Hybrid
    6. EyeTV 3 software

    This is how I use it:
    7. I capture and save everything to the Ext. HD's (7200 RPM)
    8. I surf the web
    10. Watch one cable channel
    11. While recording a second cable show
    12. Edit a previously recorded show during commercials

    I do 7. thru 12. all at the same time, using 1. thru 6.

    The only time their is a slow down is when TimeMachine
    kicks on. I would recommend turning TM off while your
    doing multiple things like I've described.

    I haven't tried this using an External USB HD yet.
    The USB speed standard is 20% faster
    than FW400 but in reality USB is typically
    30 to 40% slower than FW400.
    Since the Elgato hardware is USB
    if you use a USB External HD that
    may be the straw that breaks the camels back.
    I don't think you'll hurt your camel,
    you should be fine.
  3. sammich macrumors 601


    Sep 26, 2006
    You'll be fine.

    You can write up 30 MB/s to a USB drive, and recording makes up about 1-1.5 MB/s.
  4. Ramius thread starter macrumors 6502

    Nov 2, 2008
    Thanks folks, both very usefull answers.
    I will turn auto-copying OFF in Timemachine, as its annoying it always starts without asking me.
  5. Supaman22 macrumors newbie

    Oct 19, 2008
    Sorry for the super bump, but how exactly do you make it save to the external HDD by default? I'm low on disk space and bought an external HDD but it seems useless.
  6. billib, May 7, 2011
    Last edited: May 7, 2011

    billib macrumors member


    Apr 23, 2009
    While your EyeTV Application is running and frontmost on your desktop,
    left click on "EyeTV" in your Menu Bar at the top of you Desktop. Then go:
    EyeTV → Preferences → Recording → "EyeTV Location" then simply point
    EyeTV too your external HD using the "Location" button.

    You will need to drag your internally stored captures from EyeTV to your new
    external HD in order for them to show up under "EyeTV Programs" → Recordings.
    Then delete the internal captures to reclaim disc space.
  7. billib macrumors member


    Apr 23, 2009

    I use the App. "TimeMachineScheduler". Just
    tell T.M. to run once a day while your asleep.
    Works fine with Snow Leopard.

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