The DSR70A is an all-in-one portable editing recorder with a 6.4 inch LCD monitor, audio speaker, DMC, jog/shuttle dial and edit function keys. The DSR-70A is also one of DVCAM's Master Series VTRs capable of playback of DV (SP), DVCAM and DVCPRO cassettes automatically without adapters or menu setting changes. This feature makes it ideal for ENG applications where video is acquired from multiple sources.The DSR70 has an SDI digital interface*, allowing a direct connection with Betacam SX VTRs and an RS-422 remote interface used for professional editing. The DSBK-160A option board provides both i.LINK IEEE 1394 DV I/O and SDI input/output connections on a single option board.*NOTE: Optional interface boards (DSBK-140/150/160/170) cannot be used in combination with each other. However, these boards can be used together with the optional DSBK-180 Dual Video Input Board.