-
Whats the difference between a Live CD and a live DVD?
Hi, I downloaded Knoppix 4.0.2 ISO image and burnt a CD and am using it now. Can anyone tell me what the difference is between the contents of this Live CD that I am using and the Knoppix 4.0.2 Live DVD that is sold from the vendors? From what I read, it looks like both of them have all the similar sort of programs bundled with the GNU/Linux OS. The only difference I am guessing is that files are more compressed in the CD-ROM than on the DVD. Am I right? If so, I would imagine that running from a Knoppix Live DVD would be faster than running from a CD-ROM (since it would take less time in decompressing the files from the DVD for them to be run on RAM). Is that correct?
-
Senior Member
registered user
The only difference I am guessing is that files are more compressed in the CD-ROM than on the DVD. Am I right?
It is not more compressed but there are simply more files on the DVD as compared to the CD. The CD uncompressed is about 1.9 GB of files and the DVD uncompressed is about 9GB of files.
If so, I would imagine that running from a Knoppix Live DVD would be faster than running from a CD-ROM (since it would take less time in decompressing the files from the DVD for them to be run on RAM). Is that correct?
Probably not since the de/compression routine is the same for both CD & DVD. If you see a speed difference, it could be attibuted to CDR versus DVDR media or the speed of the drive itself.
-
Administrator
Site Admin-
Re: Whats the difference between a Live CD and a live DVD?
Originally Posted by
bokaroseani
. Am I right? If so, I would imagine that running from a Knoppix Live DVD would be faster than running from a CD-ROM (since it would take less time in decompressing the files from the DVD for them to be run on RAM). Is that correct?
No, you're wrong in two way. Running from a compressed image would actually be faster than running from an uncompressed image. reading a optical disk is much slower than the computation speed of decompressing a file, so reading a little and decompressing it is actually faster than reading an uncompressed file from disc. But the DVD does have more software on it.
I sure wouldn't fool with a disc reseller though if you don't have your own burner; there is plenty to keep you busy on the CD and you can download anything else yourself. If you look around a little on the mirror sites you should be able to find a list of the "packages" on the CD and the DVD.
-
Thanks. Thats good to know.
Similar Threads
-
By stevesr0 in forum Hdd Install / Debian / Apt
Replies: 2
Last Post: 05-10-2007, 05:49 AM
-
By alan4100 in forum Laptops
Replies: 4
Last Post: 08-02-2006, 12:16 AM
-
By fwheeler_1 in forum Hardware & Booting
Replies: 1
Last Post: 11-13-2005, 05:58 PM
-
By maeztro in forum Laptops
Replies: 2
Last Post: 05-01-2004, 02:30 PM
-
By tonyleake in forum Hdd Install / Debian / Apt
Replies: 1
Last Post: 03-30-2004, 06:16 PM
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
Custom Server 15" Depth X11SSH-F E3-1270 V6 3.8Ghz 4 Core - 128GB NVME 32GB RAM
$399.00
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$149.00
Australia Linux Server- 32 GB RAM + 500 HDD + 6 Core processor
$66.50
POGO Linux WEBWARE 1150 Rack-Mount Server Pentium 4 2.8GHz 512MB - No Drives
$179.99
IBM Power8 S822L 20-Core 3.42GHz 256Gb 1.2Tb 40G Elastic Storage Server 5148-22L
$599.95
IBM 8247-21L S812L 10-core 3.42 GHz 128GB 2x 300gb 12x SFF Power8 Linux Server
$649.00
PFSENSE 15" Depth Server Router Firewall Supermicro X11SSH-F E3-1240 V5 32GB RAM
$382.00
The Complete Redhat Linux 5.2 Operating System Deluxe Secure Server New Sealed
$25.00
1U 10 Bay Supermicro Server X10DRW-iT 2x E5-2650 V4 128GB DDR4 2x PCI-E Riser 16
$359.00
SQL Server 2022 Standard Unlimited Cores
$509.27