Sony HVRM35U Product Brochure (HVR-M35U / HVR-M25AU / HVR-M15AU Digital HD Vid - Page 3

HDV FORMAT HDV 1080i Specification The HDV 1080i specification*2 of the HDV format features 1,080 effective scanning lines (interlace scanning system) and 1,440 horizontal pixels. It adopts the MPEG-2 compression format (MP@H-14 for video), which uses 8-bit digital component recording with a sampling rate of 4:2:0. The HDV 1080i specification provides high picture quality that can be used for HDTV program production. In HDV format, the progressive recording format is also defined as an option for HDV 1080i specification.With this format, called HDV native progressive format, 1080p images at 24, 25 or 30 frames per second can be recorded. The HVR-M35U /M25AU/M15AU enables users to play back 1080p images recorded with camcorders featuring this format and to record with i.LINK® input. Track Pattern of the HDV 1080i Specification Direction of tape travel 10 μm Sub Code sector Direction of head motion MPEG-2 PES sector (Video + Audio + Search + AUX) 6.35 mm (1/4 inch) ITI sector ITI: Insert and Track Information PES: Packetized Elementary Stream Compatible with Existing and New DV Videocassette Tape As a member of the proven DV family of formats, the HDV format has, from the outset, been developed for compatibility with all grades of DV videocassette tape. This allows operators to use high-grade DV videocassette tapes for applications where high robustness is critical, or consumer-grade videocassette tapes for more economical operations. For heavy-duty applications, the DigitalMasterTM high-grade cassette tape has been developed. This tape is compatible with the HDV, DVCAM, and DV formats. Long Recording Time The HDV format adopts the same track pitch and tape speed as the DV format, thus offering the same recording time - a maximum of 276 minutes when recording on a DigitalMaster standard cassette tape and a maximum of 63 minutes when recording on a DigitalMaster mini cassette tape. FEATURES OF HVR-M35U, HVR-M25AU AND HVR-M15AU Switchable Recording and Playback - HDV 1080i/DVCAM/DV SP and 60i/50i M35 M25A M15A The HVR-M35U/M25AU/M15AU can switch between HDV 1080i, DVCAM, and DV*3 recording, providing full flexibility to record in either standard definition or high definition depending on your production needs. In addition, it can be switched between 60i and 50i modes (NTSC and PAL), which allows for flexible production operations, without the need for two separate VTRs of each standard. These models also supports HDV native progressive recording format, so they can playback/record; •HDV1080i: 60i/50i/24p/30p/25p •DVCAM/DV:60i/50i Dual-size Cassette Mechanism M35 M25A M15A The HVR-M35U/M25AU/M15AU has a dual-size cassette mechanism that accepts both mini- and standard-sized DigitalMaster, DVCAM, and DV cassette tapes - without using any special adaptor. This feature allows the six different types of cassette tape to be used without the cumbersome process associated with additional mechanical hardware. *2 The HDV format also defines the HDV 720P specification, which features 720 effective scanning lines (progressive scanning system) and 1,280 horizontal pixels. *3 The HVR-M35U/M25AU/M15AU supports DV SP mode only; no support for DV LP mode. 3