indigopete
So, while I accept many of your points about the merits of optical for long term archiving, it doesn't begin to make a case for comprimising all other design priorities just to cram a ruddy great peice of mechanical "junk" with a rotating disk and lots of parts which can go wrong into the body of the machine.
Yes, I know about external DVD burners.
Given the form factor of the current macbook Pro non-Retina, there is a large empty space, you can either toss in a second hard drive or have a DVD burner......., which 2nd HD is seemingly "neat", but realistically anyone trying to making their laptop a "mass storage device" is barking up the wrong tree in general and mostly in specific. Ive made several such mods, but not for myself. External HD are very cheap, and should be autonomous to the notebook due to theft and countless other reasons.
The current Panasonic made superdrive has a LOT of parts, yes,....I "repaired" 2 of them just 48 hours ago, however it was only pet fuzz and dust buildup from a client, ...I only needed to blow them out. The drives are hardly "junky"
A replacement superdrive new is only $40, very very cheap.
In the current factor of the macbook Pro, you can either stick in a redundant HD which 99% of people dont need.....
..or have a DVD burner (notice I said burner, not player). Useful for burning home movies for your home DVD player, burning archives, creating data disks to mail to people.......and of course "watching commercial DVDs/playing music/ ripping music for your Ipod"
indigopete
rotating disk and lots of parts (DVD player)....which can go wrong
Having torn apart about 300 hard drives in my life, I might remind you that any current conventional HD has "rotating disks and LOTS of parts too"......................and they break a LOT more, a LOT sooner, a LOT easier than the superdrive by a wide margin.
A superdrive will take 20X more abuse and last longer than any Hard Drive will