Differentiating between compressed/uncompressed dmg's

flonejek · flonejek #1 (**permalink**)

08-10-2004, 11:16 AM

umm does anyone know a fast way of doing this?, my 60 gig drive is filling up and I was wondering if I could compress some dmg's to save space, but I don't know how to check which ones are already compressed :confused:

rman · rman #2 (**permalink**)

08-10-2004, 12:20 PM

Yes you can compress dmg images. Most compression programs will place a new extension on the newly compressed file.

Icarus · Icarus #3 (**permalink**)

08-10-2004, 01:43 PM

Will compression hurt the file at all? If not, why don't applications install themselves as compressed?

rman · rman #4 (**permalink**)

08-10-2004, 02:03 PM

Compression should not hurt the file. If it is an application, you will not be able to use it until you uncompress it.

flonejek · flonejek #5 (**permalink**)

08-10-2004, 07:08 PM

I was thinking more along the lines of using disk utility to convert a normal one to a compressed one, then there's no need for any extra software to extract it, panther just mounts it. My problem was telling the difference between a compressed one and a non-compressed one (both with extension .dmg) as I have quite a few cd game images and I can't remember when I started compressing them.

rman #2 (permalink)
Inactive Staff Member Since: Dec 24, 2002 Location: Los Angeles, California Posts: 12,591 Mac 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	08-10-2004, 12:20 PM Yes you can compress dmg images. Most compression programs will place a new extension on the newly compressed file. Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!
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rman #4 (permalink)
Inactive Staff Member Since: Dec 24, 2002 Location: Los Angeles, California Posts: 12,591 Mac 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	08-10-2004, 02:03 PM Compression should not hurt the file. If it is an application, you will not be able to use it until you uncompress it. Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!
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Differentiating between compressed/uncompressed dmg's

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flonejek #1 (permalink)
Guest Posts: n/a	08-10-2004, 11:16 AM umm does anyone know a fast way of doing this?, my 60 gig drive is filling up and I was wondering if I could compress some dmg's to save space, but I don't know how to check which ones are already compressed :confused:
	QUOTE Thanks

flonejek #5 (permalink)
Guest Posts: n/a	08-10-2004, 07:08 PM I was thinking more along the lines of using disk utility to convert a normal one to a compressed one, then there's no need for any extra software to extract it, panther just mounts it. My problem was telling the difference between a compressed one and a non-compressed one (both with extension .dmg) as I have quite a few cd game images and I can't remember when I started compressing them.
	QUOTE Thanks

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