Search results
Results from the WOW.Com Content Network
A hard disk recorder (HDR) is a system that uses a high-capacity hard disk to record digital audio or digital video. Hard disk recording systems represent an alternative to reel-to-reel audio tape recording and video tape recorders , and provide non-linear editing capabilities unavailable using tape recorders.
This list includes both CD, DVD and Blu-ray recordable and rewritable media manufacturers (like Ritek), and disc replicators (companies that replicate discs with pre-recorded content, like Sony DADC).
In 2009, Panasonic introduced the world's first Blu-ray disc recorder which was capable of recording both DVDs and Blu-ray discs and featured built in satellite HDTV tuners. A year later, Panasonic introduced Blu-ray disc recorders with terrestrial HDTV tuners. DVD recorders have technical advantages over VCRs, including: [citation needed]
Unlike early CD-ROM drives, optical disc recorder drives have generally used industry standard connection protocols. Early computer-based CD recorders were generally connected by way of SCSI ; however, as SCSI was abandoned by its most significant users (particularly Apple Computer ), it became an expensive option for most computer users.
HD Rec is an extension of the HD DVD format for recording HD content on regular red laser DVD-Rs/DVD-RWs using H.264/MPEG-4 AVC compression. [103] It was approved by the DVD Forum on September 12, 2007 [ 104 ] It is comparable to Blu-ray Disc's AVCREC .
Those 74 minutes come from the maximum playtime that the Red Book (audio CD standard) specifies for a digital audio CD (CD-DA); although now, most recordable CDs can hold 80 minutes worth of data. The DVD and Blu-ray discs hold a higher capacity of data, so reading or writing those discs in the same 74-minute time-frame requires a higher data ...
For example, you may want to go with a 3-month, 6-month, 9-month, and 12-month setup to take advantage of today's strong CD rates while maintaining flexibility with your money. Or, lock in some ...
The rotational mechanism in an optical drive differs considerably from that of a hard disk drive's, in that the latter keeps a constant angular velocity (CAV), in other words a constant number of revolutions per minute (RPM). With CAV, a higher throughput is generally achievable at the outer disc compared to the inner.