7 Replies Latest reply: Jun 16, 2006 1:28 PM by Ferrand
MacPaint Level 1 Level 1 (40 points)
I have a Early 2006 Intel iMac.

I thought this came with the capability to burn double-layer DVDs?

Under system profiler, under Disc Burning, under DVD Write, it says: -R, -RW

Shouldn't there be a DL in there?

I have a MATSHITA DVD-R UJ-846.

Mac OS X (10.4.6)
  • Simon Clayton Level 4 Level 4 (1,215 points)
    I'm not infront of my iMac at the moment, but can cofirm my 20" Intel iMac does dual layer, and I have burnt some of my home movies on this format and it works well.

    This link also confirms it http://www.apple.com/uk/imac/whatsinside.html
  • Tim Lorenzen Level 4 Level 4 (1,930 points)
    Mine says -R, -RW, +R, +RW, +R DL

    There may be a problem with the firmware of your SuperDrive.
  • Red Dwarf Level 6 Level 6 (14,890 points)
    Hi MacPaint,

    Both the 17" and 20" iMac Intel (Early 2006) have superdrives with dual layer burning capability.

    Just looking at my System profiler reveals:

    MATSHITA DVD-R UJ-846:

    Firmware Revision: FB2U
    Interconnect: ATAPI
    Burn Support: Yes (Apple Shipped/Supported)
    Cache: 2048 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -RW, +R, +RW, +R DL
    Burn Underrun Protection CD: Yes
    Burn Underrun Protection DVD: Yes
    Write Strategies: CD-TAO, CD-SAO, DVD-DAO
    Media: No

    You can also view the full specs here:

    http://www.apple.com/imac/whatsinside.html

    RD
  • MacPaint Level 1 Level 1 (40 points)
    right, that is what I thought...it should have it. but according to system profiler, it does not. also looks like I have 0 cache, whereas others don't.

    here is the full detail:

    MATSHITA DVD-R UJ-846:

    Firmware Revision: FB2U
    Interconnect: ATAPI
    Burn Support: Yes (Apple Shipped/Supported)
    Cache: 0 KB
    Reads DVD: Yes
    CD-Write: -R, -RW
    DVD-Write: -R, -RW
    Burn Underrun Protection CD: Yes
    Burn Underrun Protection DVD: Yes
    Write Strategies: CD-TAO, CD-SAO, DVD-DAO
    Media: No





    Any suggestions of how to get this issue resolved?
  • Tim Lorenzen Level 4 Level 4 (1,930 points)
    Contact Apple for a replacement SuperDrive - I don't think there is another option.
  • MacPaint Level 1 Level 1 (40 points)
    Spoke to Apple on the phone. She suggested I zap the PRam, which we both thought would have no effect, but after doing so, system profiler now shows 2048KB of cache and +R, +RW, and +R DL DVD writing support!

    Seems odd to me.

    I did run into a few snags thought. After zapping the PRAM, I got a crash on startup. It said hold the power button to restart. Which I did. It stated up ok. THen I decided to restart one more time and the same thing happened again.

    Below is the report. Any thoughts on what is going on?


    panic(cpu 0 caller 0x0019CAEF): Unresolved kernel trap (CPU 0, Type 14=page fault), registers:
    CR0: 0x80010033, CR2: 0x00000000, CR3: 0x00d10000, CR4: 0x000006e0
    EAX: 0x00000000, EBX: 0x498905fe, ECX: 0x00000000, EDX: 0x0000000e
    ESP: 0x00000000, EBP: 0x24f7ba98, ESI: 0x03b42400, EDI: 0x80000000
    EFL: 0x00010202, EIP: 0x00000000, CS: 0x00000008, DS: 0x00000010

    Backtrace, Format - Frame : Return Address (4 potential args on stack)
    0x24f7b904 : 0x128b5e (0x3bbeb8 0x24f7b928 0x131bbc 0x0)
    0x24f7b944 : 0x19caef (0x3c1340 0x0 0xe 0x3c10f8)
    0x24f7b9f4 : 0x197b53 (0x24f7ba08 0x24f7ba98 0x0 0x24f70048)
    0x24f7ba00 : 0x0 (0x24f70048 0x120010 0x16d0010 0x10)
    0x24f7ba98 : 0x5217d9 (0x3b42400 0xe 0x0 0xffff)
    0x24f7bb08 : 0x51b3b7 (0x3b42400 0x3748300 0x0 0x373ef8)
    0x24f7bb28 : 0x37bfee (0x3748300 0xe0000100 0x3b42400 0x1)
    0x24f7bb68 : 0x37ccd9 (0x3b42400 0xe0000100 0x3748300 0x1)
    0x24f7bb98 : 0x37cc34 (0x3b42400 0x36d8800 0x1 0x0)
    0x24f7bbd8 : 0x51f790 (0x3b42400 0x36d8800 0x1 0x0)
    0x24f7bbf8 : 0x521010 (0x3b42400 0x36d8800 0x1 0x0)
    0x24f7bc28 : 0x520f60 (0x3b42400 0x3b42400 0x1 0x5207d4)
    0x24f7bc58 : 0x52a8ce (0x3b42400 0x36d8800 0x1 0x0)
    0x24f7bca8 : 0x52aadb (0x36d8800 0x3b42400 0x24f7bcd8 0x3aeea4)
    0x24f7bcd8 : 0x52e3b1 (0x36d8800 0x3cc3c50 0x24f7bcf8 0x38c777)
    0x24f7bcf8 : 0x38e108 (0x36d8800 0x1 0x0 0x0) Backtrace continues...
    Kernel loadable modules in backtrace (with dependencies):
    com.apple.iokit.IOHIDFamily(1.4.7)@0x515000

    Kernel version:
    Darwin Kernel Version 8.6.1: Tue Mar 7 16:55:45 PST 2006; root:xnu-792.9.22.obj~1/RELEASE_I386

    Model: iMac4,1, BootROM IM41.0055.B02, 2 processors, Intel Core Duo, 2 GHz, 2 GB
    Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 128 MB
    Memory Module: DIMM0/BANK 0, 1 GB, DDR2 SDRAM, 667 MHz
    Memory Module: DIMM1/BANK 1, 1 GB, DDR2 SDRAM, 667 MHz
    AirPort: spairportwireless_card_type_airportextreme (0x14E4, 0x89), 103.2 (3.120.28.3)
    Bluetooth: Version 1.7.3f4, 2 service, 1 devices, 1 incoming serial ports
    Network Service: Built-in Ethernet, Ethernet, en0
    Network Service: Parallels Host-Guest Adapter, Ethernet, en2
    Serial ATA Device: WDC WD2500JS-40NGB2, 232.89 GB
    Parallel ATA Device: MATSHITADVD-R UJ-846
    USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA
    USB Device: deskjet 3600, hp, Up to 12 Mb/sec, 500 mA
    USB Device: PS2 to USB Converter, CHESEN, Up to 1.5 Mb/sec, 500 mA
    USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA
    USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA


  • Ferrand Level 1 Level 1 (5 points)
    Only +R DL... My -R DL are rejected... Can't read what I burned on my old Mac. What a crappy SuperDrive.