Double check the model you want to buy...
I use www.xlr8yourmac.com - Just in case that model is not mac compatible.
Almost all recent DVD writer are compatible.
http://forums.xlr8yourmac.com/drivedb/search.drivedb.lasso
Then unplug your mac and carefully remove your existing drive.
Install the new drive in the same fashion. Instructions like this are available.
http://www.xlr8yourmac.com/G3-ZONE/hival52x/install.html
Usually 4 screws and 2 plugs that cannot be confused.
Some drives with some Operating Systems require patchburn
http://www.patchburn.de/download.html
I've done this 3 times without problems, Good Luck
I use www.xlr8yourmac.com - Just in case that model is not mac compatible.
Almost all recent DVD writer are compatible.
http://forums.xlr8yourmac.com/drivedb/search.drivedb.lasso
Then unplug your mac and carefully remove your existing drive.
Install the new drive in the same fashion. Instructions like this are available.
http://www.xlr8yourmac.com/G3-ZONE/hival52x/install.html
Usually 4 screws and 2 plugs that cannot be confused.
Some drives with some Operating Systems require patchburn
http://www.patchburn.de/download.html
I've done this 3 times without problems, Good Luck