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Each CD track has an index; however, it is rare to find a CD player that displays or can access this feature, except occasionally in pro audio equipment, usually for radio broadcasting. Every track at least has index 1, and often has a pre-gap which is index 0. Additional songs, such as "hidden tracks", may have index 2 or 3.
The track is truly hidden in the sense that most conventional standalone players and software CD players will not see it. Such hidden tracks can be played by playing the first song and "rewinding" (more accurately, seeking in reverse) until the actual start of the whole CD audio track. Not all CD drives can properly extract such hidden tracks.
Disc-At-Once (DAO) recording for DVD-R media is a mode in which all data is written sequentially to the disc in one uninterrupted recording session. The on-disk contents result in a lead-in area, followed by the data, and closed by a lead-out area. The data is addressable in sectors of 2048 bytes each, with the first sector address being zero.
Unlike other CD-based formats, such as China Video Disc and Video CD, Super Video CD video is incompatible with both the DVD-Video and Blu-ray standards due to a conflict in resolution. However, many DVD and Blu-ray players will play back SVCD resolution video from a DVD or Blu-ray disc anyway.
CD Player is a computer program that plays audio CDs using the computer's sound card. It was included in Windows 95, Windows 98, Windows NT 3.51, Windows NT 4.0 and Windows 2000 (as Deluxe CD Player). It was removed from Windows ME and beyond in favor of "CD/DVD playback functionality" in Windows Media Player.
However, most Blu-ray players, most vehicle audio with DVD/Blu-ray support, Xbox family, and the Sony PlayStation (2/3/4/5) cannot play VCDs; this is because while they have backwards playback compatibility with the DVD standard, these player can not read VCD data because the player software does not have support for MPEG-1 video and audio, the ...
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.
Limited rewritability on DVD-RW/+RW discs (typically around 1000). DVD-RAM is better suited for high frequency re-recording (around 100,000 rewrites) Relatively short life of the laser diodes (average of about 2 years depending on usage). In addition, DVDs recorded with DVD recorders in the standard DVD format must be finalized to view in other ...