the common VHS format to playback the encoded signal, unless you have a
facility to decode PAL transmissions then you are onto a loser. Some more
expensive video machines have both decoding circuitry which are switch
selectable.

You may be able to find a company offering a translation service to NTSC for
you, but I unfortunately don't know of any.  You will not have the problem
with audio cassettes as these use the same transmission standards.

Hwyl, Huw.