Search results
Results from the WOW.Com Content Network
Another deliberate violation of the Red Book standard intended to make the CD play only on CD players and not on computers by applying bogus data track onto the disc during manufacturing, which CD players will ignore as non-audio tracks. The system could be disabled by tracing the outer edge of a CD with a felt-tip marker. [3] MediaMax CD3
Usually, similar to modern players, the media player will be reading audio into memory for later playback, especially given the extreme speeds used by CD-ROM drives in order to access raw data on other discs. Because of this, if there is a fault during playback, the player will already be performing a checksum to verify the data read is correct ...
Portable players, more so portable CD players but also some portable DVD players, that invariably include an ASP feature (Anti-Skip-protection), struggle with CD-R/RW, DVD-R/RW and DVD+R/RW discs – due to the ASP feature being enabled. This is due to the limited read capability of such write-yourself media discs over retail pressed discs.
Like most other videocassette systems, Video8 uses a helical-scan head drum (it having a small 40mm head) to read from and write to the magnetic tape. [13] The drum rotates at high speed (one or two rotations per picture frame—about 1800 or 3600 rpm for NTSC, and 1500 or 3000 rpm for PAL) while the tape is pulled along the drum's path.
Portable CD players are powered by batteries and they have a 1/8" headphone jack into which the user plugs a pair of headphones. The first portable CD player released was the D-50 by Sony. [58] The D-50 was made available on the market in 1984, [59] and adopted for Sony's entire portable CD player line.
Previous to the introduction of 1/4-inch audio tape, recordings were made on 35mm optical cameras, and then later, with the introduction of magnetic recording, 16mm or 35mm magnetic stock. The first 1/4-inch recorder capable of recording a synch track to regulate the playback speed of the recording was made by Rangertone and was a variation on ...
DVD lens supports a different focus for CD or DVD media with same laser. With the newer Blu-ray Disc drives, the laser only has to penetrate 0.1 mm of material. Thus the optical assembly would normally have to have an even greater focus range. In practice, the Blu-ray optical system is separate from the DVD/CD system.
The ADAT system uses Super VHS tapes to record 8 synchronized digital audiotracks at once. There have also been several audio recording systems which used VHS video recorders as storage devices and video tape transports, generally by encoding the digital data to be recorded into an analog composite video signal (which resembles static) and then ...