There are a mumber of DVD performances of these two operas -- live as well as film with lip sync. But, if you want them together, in a live recording, this is the best. First telecast by the Met 31 years ago in 1978, the video and audio have been restored and while understandably not state of the art by today's standards, this DVD is certainly very watchable and listenable. The color is good and there are two audio formats, LPCM stereo and DTS 5.1 surround.
In both Cav and Pag, Domingo sings with a passion and demonstrates why he went on to have a superstar career. The late Tatiana Troyanos delivers a knockout Santuzza. In Pag, Sherrill Milnes is in excellent voice as Tonio and brings down the house after the Prologue. The superb singing actress Teresa Stratas IS Nedda. Every gesture and facial expression is perfect. The rest of the Met cast is wonderful and Franco Zeffirelli's production is very convincing.
Interestingly, the same Zeffirelli Pag production is what Pavarotti sings in his 1994 DVD performance. And, Miss Stratas (16 years later) is once again a dynamite Nedda. I wouldn't be without either DVD. However, the 1978 Met Cav/Pag is a must for any opera fan.