Both used a 2 inch tape transport design adapted from the video recording division.
From the en.wikipedia.org
The Digital8 format is a combination of the older Hi8 tape transport with the DVcodec.
From the en.wikipedia.org
The player supports HDV video, though it does not have a tape transport.
From the en.wikipedia.org
Sony calls the simplified tape transport No Track.
From the newscientist.com
The central processing unit consists of a minicomputer, a computer console and page printer, a magnetic tape transport and a magnetic disk memory unit.
From the en.wikipedia.org
The tape transport was followed by the 405 Card Reader and the 415 Card Punch, followed by a series of tape drives and drum printers, all of which were designed in-house.
From the en.wikipedia.org
This was because, among other things, in addition to its lower purchase and operating costs this digital composite video tape transport accepted standard analog video inputs and outputs.
From the en.wikipedia.org
Magnetic tapes, both analog and digital, wear from friction between the tape and the heads, guides, and other parts of the tape transport as the tape slides over them.
From the en.wikipedia.org
However, in later years Sony discouraged this practice, suggesting that the internal tape transport of a domestic Betamax cassette was not well suited to the faster tape transport of Betacam.