Henri Tapani Heinonen wrote:Thanks.
Could you, please, tell me more about the physical impossibilities? Maybe you mean Blu-ray&DVD-RAM-cartridge-support or something?
From your petition:
We, undersigned, want "all-in-one" combo drives that satisfies the following features:
- It should be easy to put a 120 mm, 80 mm or 60 mm disc with or without a cartridge on the drive's tray. For example, DVD-RAMs, PDs and probably BluRay Discs have a cartridge around the disc. ML CD-R(W)s have the new 60 mm form factor.
To do this, you would need a very specialized drive tray that would be able to handle cartridges and bare discs. Panasonic has done it at least once, so It's physically possible, but not simple, and more expensive (non-standardized!). Accepting 120mm, 80mm and 60mm bare discs on a tray would require 3 imprints in the tray, whereas normally there are 2. This would require a thicker tray, and between this and the cartridge requirement, would probably make the drive larger then the 'Half-height' standard for ODDs. You don't want that. A slightly better solution would be to force cartridges in all cases... which may require seperate cartridge types for different formats potentially... it would likely be non-standard, so the drive maker would have to make arrangements to have these produced. and Since you want TOTAL compatability, they'd need to produce a lot of really unusual ones. Might as well throw MiniDisc and UMD support in there too while we're at it
- "All-in-one" combo drive must be able to read (and write) all the optical disc formats: CD-R, CD-RW, DD-CD-R, DD-CD-RW, ML CD-R, ML CD-RW, FMD, PD, GD-R, DVD-RAM, DVD-R(A), DVD-R(G), DVD-RW, DVD+R, DVD+RW and all the different versions of them including Dual Layer (DL)."
- "All-in-one" combo drive must be ready for the future formats: BluRay, HD-DVD, EVD, VMD, DMD, HVD, etc., and all the different versions of them."
Not to be blunt, but do you have any idea how many different wavelengths are required, let alone focus distances and pick up heads, just for the formats in that list? My guess is a minimum of 3-5 lasers, some pretty advanced focusing technology (which would need to be custom built JUST for this drive... which means it might be easier/cheaper to use more lasers at set focus points!), and PUH's wouldn't be any better either. Consider the amount of physical space each of these parts would take up in the unit. You already need a specialized cartridge supporting tray that'll be bigger then normal.
- "All-in-one" combo drive must be cheap, silent and have a high MTBF.
- "All-in-one" combo drive must have BURN-Proof technology and/or related technology, and DAO, TAO, SAO and PAO.
Cheap??? I'd be quite surprised if this drive could be manufactured for less then $800 (that's being VERY optomistic even), just because of all the custom parts required. Don't forget all the extra licensing fees that would be required for supporting nearly every format known to man... on top of that, all those 'burn proof' technologies require specific chipsets.... trying to throw in multiple chipsets would require significantly more phsyical space, not to mention some way of controlling/switching between the chipsets. Again, that's more custom work.
So you'd be looking at a machine that would cost probably ~25x regular drive prices (based on the DVD market), and would likely take up 2x as much space (2 drive bays). I'm still not entirely convinced it's even possible to make a drive with multiple chipsets, or a control system to handle so many lasers.
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media