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  2. AOL Video - Troubleshooting - AOL Help

    help.aol.com/articles/aol-video-troubleshooting

    It is possible that the video was not originally downloaded onto the device that you are trying to play it from. When you download a video on a device, the license for that video is allotted only to that particular device. However, you will not be able to play the video if it is moved or copied to another device or location.

  3. Videocassette recorder - Wikipedia

    en.wikipedia.org/wiki/Videocassette_recorder

    A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or other AV sources and can play back the recording after rewinding. The use of a VCR to record a television program to play back at a more convenient time is commonly referred to as time shifting.

  4. Helical scan - Wikipedia

    en.wikipedia.org/wiki/Helical_scan

    The head drum of a Hi-Fi NTSC VHS VCR; three of the six heads face the reader. The helical path of the tape around the drum can clearly be seen. The same head drum with the rotating portion elevated for clarity The rotating portion of the head drum showing the rotary transformer and three of the six tape heads used in this particular VCR

  5. Media Control Interface - Wikipedia

    en.wikipedia.org/wiki/Media_Control_Interface

    The Media Control Interface consists of 7 parts: cdaudio; digitalvideo; overlay; sequencer; vcr; videodisc; waveaudio; Each of these so-called MCI devices (e.g. CD-ROM or VCD player) can play a certain type of files, e.g. AVIVideo plays .avi files, CDAudio plays CD-DA tracks among others.

  6. Video tape tracking - Wikipedia

    en.wikipedia.org/wiki/Video_tape_tracking

    In a video tape recorder, tracking is a calibration adjustment which ensures that the spinning playback head is properly aligned with the helical scan signal written onto the tape.

  7. Time base correction - Wikipedia

    en.wikipedia.org/wiki/Time_base_correction

    Time base correction (TBC) is a technique to reduce or eliminate errors caused by mechanical instability present in analog recordings on mechanical media. Without time base correction, a signal from a videotape recorder (VTR) or videocassette recorder (VCR), cannot be mixed with other, more time-stable devices such as character generators and video cameras found in television studios and post ...

  8. Video Cassette Recording - Wikipedia

    en.wikipedia.org/wiki/Video_Cassette_Recording

    Video Cassette Recording (VCR) is an early domestic analog recording format designed by Philips. It was the first successful consumer-level home videocassette recorder (VCR) system. Later variants included the VCR-LP and Super Video (SVR) formats. The VCR format was introduced in 1972, just after the Sony U-matic format in 1971. Although at ...

  9. Blinking twelve problem - Wikipedia

    en.wikipedia.org/wiki/Blinking_twelve_problem

    The clock could be set by using a combination of buttons provided on the VCR in a specific sequence that was found complicated by most users. As a result, VCR users were known to seldom set the time on the VCR clock. This resulted in the default time of '12:00' blinking on the VCR display at all times of the day, which is the origin of this term.