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  1. #1
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    iMac DVD player not playing certain DVDs?
    My built in DVD rom combo won't play many DVD movies, only certain ones.

    My iMac is a 700 MHz G4 model, below are details that I cut/paste from the System Profiler.

    Can anyone tell me if I need a firmware update or anything else that could help and where I go to get one, also I don't know how to do these things so I hope any site you point me to has instructions?

    Oh yes, I did an 10.3.7 combo update and repaired all permissions etc, but the DVD player had difficulty reading certain main-stream movies before this.

    HL-DT-ST RW/DVD GCC-4120B:

    Manufacturer: HL-DT-ST
    **Model: HL-DT-ST RW/DVD GCC-4120B
    **Revision: 2.11
    **Serial Number:
    **Drive Type: CD-RW/DVD-ROM
    **Disc Burning: Apple Supported/Shipped
    **Removable Media: Yes
    **Detachable Drive: No
    **Protocol: ATAPI
    **Unit Number: 1
    **Socket Type: Internal

  2. #2

    Macman's Avatar
    Member Since
    Oct 30, 2004
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    Specs:
    PowerMac G4 Cube 450mhz 832mb
    does it only play movies from certain regions, or only some dvds whether the same region or not? have you tried cleaning your lens?

  3. #3

    rman's Avatar
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    Dec 24, 2002
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    Specs:
    2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi
    Cool
    Like macman, I am leaning toward a region problem. But more information about the DVDs are needed.
    Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!

  4. #4


    Member Since
    Mar 23, 2010
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    3 yrs in AL and hating it
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    it's embarrassing ;-)
    iMac DVD will read DVDs but will not write
    I have a question about my iMac playing, watching DVDs but won't burn.
    Here's my specs:


    OS 10.4.11
    700 MHz PowerPC G4

    here is my info on DVD drive:

    HL-DT-ST RW/DVD GCC-4120B:

    Firmware Revision: 2.11
    Interconnect: ATAPI
    Burn Support: Yes (Apple Shipped/Supported)
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    Burn Underrun Protection CD: Yes
    Write Strategies: CD-TAO, CD-SAO, CD-Raw
    Media:
    Media Type: CD-ROM
    Blank: No
    Erasable: No
    Overwritable: No
    Appendable: No

    I went to burn a DVD+RW 4.7g, but is spits it back out. So am I to believe it will only Read DVD, and just write a CD -R, -RW, even though it read at top, 'Burn Support yes' or does it have something to do with -RW and what I bought, the DVD +RW??

    Until i round up cash to buy new Mac, would it be better to buy external LG DVD drive? and if so does the - and + have something to do as well?

    take any suggestion, knowledge. thx

  5. #5


    Member Since
    Jan 22, 2010
    Location
    Victoria, BC
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    20,911
    Specs:
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    Congrats, you have resurrected a six-year-old thread.

    To answer your question: your spec report (thanks for providing that) make it clear that you have a "combo drive" not a "superdrive." Combo drives read DVDs but can't write to them. The key line in the report is "write strategies" IOW "what I can write to."

    You could buy an external DVD burner, certainly, and with the aid of Patchburn it will work with pretty much any brand. I would personally suggest you purchase a "bare" DVD burner and then a firewire case and put the two together -- you will get MUCH better performance and speed from a FW connection than a USB2 connection.

  6. #6

    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
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    28,866
    Specs:
    iMac 2010 27" QuadI7 OSX10.11, iMac 2008 OSX10.11, MBP Late2011OSX10.11 , iPad Air, iPhone 3GS
    Chas is correct. Here is a pic of my drive in my iMac that is a Super Drive and burns both +R -R and Dual Layer. Yours for sure is just a CD Burner with a DVD reader.
    Attached Images Attached Images

  7. #7


    Member Since
    Mar 23, 2010
    Location
    3 yrs in AL and hating it
    Posts
    3
    Specs:
    it's embarrassing ;-)
    Hey thanks for both replies. Guess I'll google what a bare drive is, i'm thinking no software, generic.....

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