Did you really think I would recommend future computer users to use an opticl drive to boot OS? :bigsmile:
The HDDs I meant above are the HDDs used for storage of multimedia files, and etc. rather than installed OS and programs. If rewritable optical drives and media could get very large, very fast, and very cheap, it means the end of HDDs not because optical storage alone can replace HDDs but because there are RAM, ROM, and flash that can do what HDDs do to boot OS, launch programs, and store temp files. RAM, ROM, and flash have all become extremely larger, faster, and cheaper than 10 years and 20 years ago.
When did you first read serious news and previews of Blu-ray and HD DVD? 5 years ago? 10 years ago? Not even most casual CDFreaks visitors knew what Blu-ray was about 5 years ago. Only a very tiny percentage of DVD burning enthusiasts were interested even in 2003. Compare that with IEEE 1394 and SATA. And there are DVD, CD, MD, LD, DAT, etc. that all took far longer from inception to mass production.
Whether you can trust Blu-ray's rewritability is entirely another matter. CDFreaks has plenty of visitors that try to find the cheapest sources of DVD recordable media even when it's made in China and by some manufacturers difficult to identify even for experts and reporters. If you just bought HP DVD writers and HP DVD media, you would never have a problem in burning and reading. Unless you were especially unlucky or simply dumb or lazy. (HP DVD writers were first made by Ricoh and HP DVD media were first made by Ritek under Ricoh license and supervision.) First products found in retail markets of Blu-ray and similar technologies were all made by such industry leaders as Mitsubishi, TDK, Sharp, JVC, Sony, Matsushita, Pioneer, Hitachi, etc. Have you ever read Blu-ray media failing? It's already been like FOUR years and I haven't seen anyone and I'm sure there have been enough manufacturers and enough experts that have been testing and testing them.
Now, compare that with CPU industry. Or RAM. Only a few manufacturers design and produce microprocessors now we regularly use. And over half of them are actually made only by Intel. Samsung makes about one third of the world's memory products of DRAM, SRAM, flash, and other types. So it's very unlikely to find a low-quality (that just fails in a matter of minutes) CPU or RAM in even a US$200 PC. About 90% of the world's CD and DVD write-once media (that's CD-R, DVD-R, and DVD+R) are produced in Taiwan and China. Two largest manufacturers are Ritek and CMC and we all know how much they know about making optical disks. Such things have little to do with what Blu-ray is.