CDVDBurn to support DVD-RAMPublished: 25th Feb 2007, 01:17:47 | Permalink | Printable
Hard disc-like DVD writing prototypedCDVDBurn developer Steffen Huber has succeeded in writing to a DVD-RAM disc using RISC OS - and has even considered implementing Blu-ray support too. Steffen said he hopes to build the DVD-RAM write support into a future release of disc authoring package CDVDBurn, and is set to release a beta version for punters to test drive.
His prototype code was tested on a recent Lite-On device (SHM-165H6S), and the disc was read back on his Iyonix with the standard CDFS driver.
DVD-RAM, compared to DVD+RW and DVD-RW, is thought to be more suitable for backing up and archiving data from computers - it's known to be a more reliable medium, and is laid out in sectors like a hard disc. It is also more suited to the slower writing speeds achievable on RISC OS-powered hardware, and can be overwritten at least 100,000 times, compared to 1,000 times for DVD+RW.
The downside, said Steffen, is that only a few devices can read and write DVD-RAM discs. The capacity of DVD-RAM discs ranges typically from 2.58GB to 9.4GB.
Hubersn software's Steffen, pictured, said: "I have finally managed to successfully prototype DVD-RAM writing. This will be integrated into CDVDBurn in due course and made available in a public beta version.
"Obviously you'll need a drive that is DVD-RAM capable in the first place, which somehow limits the usefulness of this new feature for many existing customers.
"I also had a look into Blu-ray writing. Judging by what is written in the MMC5 standard, it seems rather complicated to handle. It also looks like current drives will only be available as S-ATA variants."
Steffen reports that he has also worked on a new universal soft-loadable CDFS driver for all RISC OS machines and modern ATAPI drives that are physically compatible. He said he grew tired of working around bugs in the various different flavours of CDFS available, and hopes to have a basic working version of his module ready for the Wakefield show in May. This is hoped to be free for current and future CDVDBurn users, and a small charge for everyone else.
He has also developed a data extraction tool for CD and DVD discs, a number of bug fixes for CDVDBurn, a verify utility for freshly-written discs, and a firmware upgrade tool for various devices.
Hubersn Software website
Steffen's original email
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