Macbook Pro not reading Snow Leopard DVD (rejecting and ejecting)

Hi guys,

Did anybody face the problem I am currently having?
My optical drive is not reading the manufacturer's "install Disks" and "Snow Leopard Install DVD." Below are my Macbook specs.

Specs:

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.27f2

Optical Drive: HL-DT-ST DVDRW GSA-S10N:

Firmware Revision: AP12
Interconnect: ATAPI
Burn Support: Yes (Apple Shipping Drive)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW
Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO
Media: Insert media and refresh to show available burn speeds


My optical drive does read music, movies, photo CDs without a problem. the only problem I am having is with those 2 DVDs mentioned above.

Any help is appreciated

You state "manufacturer's install disks". Is this the Snow Leopard DVD set with iLife? Or, are these DVDs specific for a particular machine. In other words, are they the retail version or machine specific version of Snow Leopard? It sounds like they may be machine specific and that's why they're being rejected. Let us know.

Regards.

check the Install DVD's and see if there are any fingerprints or smudges. If so clean them but be careful. Don't go in a circle. Clean from the inside to the outside.

If every other CD or DVD you own reads then that is all I can think of.

actually the "manufacturer install DVD" came with the Macbook Pro i bought from bestbuy back in 2008.

on the other hand, I bought Snow Leopard DVD 3 days ago to upgrade to 10.6


i did try to clean the disks, nothing changed. a guy at the apple store told me I have a faulty optical lense.

I will try to install using firewire procedure.

step 1: save dvd into .iso format (or shall I just install from .dmg format?)
step 2: move to firewire external HDD
step 3: back up my system
step 4: install Snow Leopard.

please let me know if that is correct

Not sure how you're going to read the DVD ISO and save it if your optical disc isn't working? Or are you going to use another machine to do this?

Anyway, this is exactly how you do it:

Install Snow Leopard from External Firewire or USB Hard Drive, or How to Upgrade to 10.6 Without a DVD Drive - OS X Daily

actually the "manufacturer install DVD" came with the Macbook Pro i bought from bestbuy back in 2008. on the other hand, I bought Snow Leopard DVD 3 days ago to upgrade to 10.6 i did try to clean the disks, nothing changed. a guy at the apple store told me I have a faulty optical lense.

Click to expand...

Try cleaning the optical drive first. Buy a cleaning kit from Best Buy, Radio Shack, Office Depot, or any other store which sells computer accessories. If the cleaning doesn't work, then I would try what Zoolook recommended.

Regards.

works great now with the USB upgrade Method

Thanks guys or the help

me 2 - have same specs you do too

Anyone know why soooo many with this same problem across message boards? Anyone found a remedy?