Like most formats of videocassette, a DAT cassette may only be recorded and played in one direction, unlike an analog compact audio cassette, although many DAT recorders had the capability to record program numbers and IDs, which can be used to select an individual track like on a CD player.Īlthough intended as a replacement for analog audio compact cassettes, the format was never widely adopted by consumers because of its expense, as well as concerns from the music industry about unauthorized high-quality copies. If a comparable digital source is copied without returning to the analogue domain, then the DAT will produce an exact clone, unlike other digital media such as Digital Compact Cassette or non- Hi-MD MiniDisc, both of which use a lossy data-reduction system. DAT can record at sampling rates equal to, as well as higher and lower than a CD (44.1, 48, or 32 kHz sampling rate respectively) at 16 bits quantization. The recording is digital rather than analog. In appearance it is similar to a Compact Cassette, using 3.81 mm / 0.15" (commonly referred to as 4 mm) magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. Up to 120 or 180 minutes (consumer tapes on non-LP mode)ĭigital Audio Tape ( DAT or R-DAT) is a signal recording and playback medium developed by Sony and introduced in 1987. eBay is not affiliated with or endorsed by Sony.A 90-minute DAT cartridge, with a AAA battery (LR03) for size comparison This is sometimes used on Sony camcorders.Ĭontent provided for informational purposes only. MXF-DV: A DV file wrapped into an MXF container.This is primarily used in Apple computers or any system with QuickTime. QuickTime-DV: A DV file wrapped into a QuickTime container.DV-AVI: A DV file wrapped into an AVI container.The footage may appear in one of the following formats: Yes, some DV players are equipped with FireWire and possibly a USB port for transferring video or pictures directly to a computer. Can Sony's DV players transfer video directly to a computer? The versatile player also comes with additional features for editing, playback, and processing digital video. However, their players are compatible with all formats. A few other digital formats such as DVCAM and DVCPRO are related to DV and have approximately the same data rate. It has a data rate of 25 Mb/s, compared to the 3.8 Mb/s of a standard DVD. A process known as intraframe video compression is used to compress the file frame by frame.įor standard-definition files, the DV format is noted for its relative quality. The quality of the file is diminished somewhat, but the size is also reduced, making it easier to store. Lossy compression means that some data is lost in the compression process. When you capture footage, the DV format uses lossy compression for video, while the audio is completely uncompressed. What kind of compression technique is used? Due to their small size, MiniDV cassettes are used for recording primarily for their convenience and portability. Cassettes that run for 80 minutes on standard play or 120 minute on extended play are also available. That is equivalent to about an hour of footage on standard quality or 90 minutes on extended play. A single cassette tape can hold approximately 13GB of data. MiniDV is the smallest DV format available. There are a few different sizes of tapes. How much video can a MiniDV tape store?Īll DV files are recorded onto a magnetic tape. Whether you're preparing to shoot a wedding video or are considering making a short film, new and pre-owned Sony DV and MiniDV video recorders and players can be purchased for reasonable prices on eBay. Although designed for professional and broadcast applications, the format can be used for home or amateur use as well. Your Guide to Sony DV and MiniDV Video Recorders and PlayersĭV and MiniDV video recorders and players are a digital video standard commonly used to record and play back media from a camcorder.
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