• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 332
  • Last Modified:

Difference in the copy speeds of CD-RW and CD-ROM drive

Sir,

I have recently installed a new CD-RW drive (Samsung 24X).
I have a 52 X CD-ROM drive.

MY problem is that when I try to copy data from compact disk of 600 MB (approx) from my CD-ROM drive to my hard drive, the system shows that the time taken to copy will be 25 to 30 minutes. But when I try to copy the same disk with the help of my newly purchased Samsung CD-RW drive, the time taken to copy it as shown by the system is only 6 to 10 minutes only.

Sir, Why is this difference in copy speeds of the drives prevail when my CD-ROM drive is 52 X and my CD-RW drive is only 24 X.

Can you sujjest some of the techniques to improve performance of my CD-ROM drive or is there some other technical difference in the drives which is causing this difference of copy speeds ?

Thanking You.
Amit Mehta.
0
hellomehta
Asked:
hellomehta
  • 2
1 Solution
 
BolingCommented:
Is DMA enabled on each of these 3 drives?
0
 
Kyle SchroederEndpoint EngineerCommented:
Are you copying the files from a normal "pressed" CD-ROM disc or from a recorded CD-R or CD-RW disc?  A CD-RW drive will generally have better read performance when reading CD-R/CD-RW compared to a CD-ROM drive.  Its just a function of the laser and mechanics of the CD-RW drive.  Visit www.cdrinfo.com to see some comparisons.

Another possibility is the way your CD-ROM and CD-RW are connected.  If the CD-ROM is on the same cable as the harddrive you're copying to, this could slow it down. Boling's suggestion about checking DMA settings can also make a big difference.  In Windows 98/ME, you can check DMA in the System control Panel -> Device Manager tab -> open CD-ROM Drives -> double-click your CD-ROM, go to the Settings tab, then see if DMA is checked. If it isn't, try checking it and restarting.

The case may be that the Samsung burner just has a higher quality reading mechanism than the 52X.  Also consider that the 52X speed only really is active on the outer 1/3 of the disc (approximately).  When the drive is reading the innner 2/3 or so, it reads much slower.

-dog*
0
 
Kyle SchroederEndpoint EngineerCommented:
Are you copying the files from a normal "pressed" CD-ROM disc or from a recorded CD-R or CD-RW disc?  A CD-RW drive will generally have better read performance when reading CD-R/CD-RW compared to a CD-ROM drive.  Its just a function of the laser and mechanics of the CD-RW drive.  Visit www.cdrinfo.com to see some comparisons.

Another possibility is the way your CD-ROM and CD-RW are connected.  If the CD-ROM is on the same cable as the harddrive you're copying to, this could slow it down. Boling's suggestion about checking DMA settings can also make a big difference.  In Windows 98/ME, you can check DMA in the System control Panel -> Device Manager tab -> open CD-ROM Drives -> double-click your CD-ROM, go to the Settings tab, then see if DMA is checked. If it isn't, try checking it and restarting.

The case may be that the Samsung burner just has a higher quality reading mechanism than the 52X.  Also consider that the 52X speed only really is active on the outer 1/3 of the disc (approximately).  When the drive is reading the innner 2/3 or so, it reads much slower.

-dog*
0
 
hellomehtaAuthor Commented:
Good answer but I have already checked these things such as DMA etc.

Thanking You.

Amit Mehta
0

Featured Post

Will You Be GDPR Compliant by 5/28/2018?

GDPR? That's a regulation for the European Union. But, if you collect data from customers or employees within the EU, then you need to know about GDPR and make sure your organization is compliant by May 2018. Check out our preparation checklist to make sure you're on track today!

  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now