7 Replies Latest reply: Aug 15, 2005 12:34 PM by Hui Cheng
John Cook4 Level 1 Level 1 (85 points)
ok here is the problem, people are saying when copying a DVD you should select DVD/CD format from disk uility, but when i do that the copies do NOT work on anything. But when i choose .dmg format (compressed) it works, but why are people telling me if you choose .dmg its not going to work on standard players? because it does? And another thing, when i choose .cdr(dvd/cd master) it ask me for a password? why? and what does this password do? does it make it protected? Please help?

Sincerely,

John Cook
  • 1. RE: .dmg vs .cdr
    Old Toad Level 10 Level 10 (115,645 points)
    John:

    Here's an Apple KB document which describes how to copy a DVD that was previously burned DVD-R video discs: How to copy previously-burned DVD-R video discs. It should give you what you need to know. Once the disk image is created burn it to disk with Disk Utility.
    Hope this has been of some help. Good luck.
    OT
  • 2. RE: .dmg vs .cdr
    John Cook4 Level 1 Level 1 (85 points)
    This does not help at all!!!!!!!!!!

    I understand this, but when i do it the disc does not work, and it does not work because iam choosing DVD/CD Master but if i choose Compressed(.dmg) it does work, so i'm wondering why they say this when its backwards?

    John
  • 3. RE: .dmg vs .cdr
    Old Toad Level 10 Level 10 (115,645 points)
    You're right. Using the compressed image format works for me also so just use the compressed image format. If it works that's all that counts. When iDVD burns to disc image it creates a dmg file. So, if it walks like a duck, .....
  • 4. RE: .dmg vs .cdr
    Hui Cheng Level 4 Level 4 (2,805 points)
    And another thing, when i choose .cdr(dvd/cd master) it ask me for a password? why? and what does this password do? does it make it protected? Please help?


    Did you selelet the Encryption to AES-128 by mistake on the dialog window? it should be "none". No wonder it does not play on your home DVD player if the DVD is encrypted.
  • 5. RE: .dmg vs .cdr
    John Cook4 Level 1 Level 1 (85 points)
    NO SIR! (coming from 7 years attending a military school) hehehe

    I did not choose the aes-128, i selected none, the password was the same password that you put into your computer. Thats what i had to put in.

    Any ideas people?
  • 6. RE: .dmg vs .cdr
    John Cook4 Level 1 Level 1 (85 points)
    Good advice, i'm sticking with .dmg I'm going to make sure i use a 1x or 2x when burning my master copy, i was using a 4x apple media, that might be another problem since i've learned when burning at 1x it does work better, too bad IDVD won't let you choose what speed to burn at.

    Thanks guys!

    Sincerely,

    John Cook
  • 7. RE: .dmg vs .cdr
    Hui Cheng Level 4 Level 4 (2,805 points)
    Any ideas people?


    Well, just guessing, look like you logged in as an user with no permission to create a disk image to a particular folder.