It is used for Sony's cinematic CineAlta range of products. HDCAM SR, introduced in 2003 uses a higher particle density tape and is capable of recording in 10 bits 4:4:4 RGB with a bitrate of 440 Mbit/s. The increased bitrate (over HDCAM) allows HDCAM SR to capture much more of the full bandwidth of the HDSDI signal (1920x1080). Some HDCAM SR VTRs can also use a 2x mode with an even higher bitrate of 880 Mbit/s, allowing for a single 4:4:4 stream at a lower compression or two 4:2:2 video streams simultaneously. HDCAM SR uses the new MPEG-4 Part 2 Studio Profile for compression, and expands the number of audio channels up to 12 at 48 kHz/24 bit. HDCAM SR is used commonly for HDTV television production. As of 2007, many prime-time network television shows use HDCAM SR as a master recording medium. Some HDCAM VTRs play back older Betacam variants, for example, the SRW-5500 from Sony, an HDCAM SR recorder, plays back Digital Betacam and records HDCAM and HDCAM SR tapes, and tape lengths are the same as for Digital Betacam, up to 40 minutes for S and 124 minutes for L tapes. In 24p mode the runtime increases to 50 and 155 minutes, respectively. HDCAM tapes are black with an orange lid, and HDCAM SR tapes black with a cyan lid. 440 Mbit/s mode is known as SQ, and 880 Mbit/s mode is known as HQ, and this mode has recently become available in stationary models as well as portable models
HDCAM, introduced in 1997, is a HD version of Digital Betacam, using an 8-bit DCT compressed 3:1:1 recording, in 1080i compatible downsampled resolution of 1440x1080, and adding 24p and 23.976 PsF modes. The HDCAM codec uses non-square pixels and as such the recorded 1440x1080 content is upsampled to 1920x1080 on playback. The recorded video bitrate is 144 Mbit/s. Audio is also similar, with 4 channels of AES/EBU 20-bit/48 kHz digital audio.