Hi8 starts off at a higher resolution than your TV can see, so after one edit the picture will still be comparable to one from a laser disc. Even after editing twice you'll still end up with an outstanding picture-probably better than what most cable TV hookups provide. The digital cameras all offer an outstanding image with good color and sharp detail. There are more than a few digital cameras available right now and here's the short story of how they stack up. We're often asked if the difference between the image from a TRV900 is noticably better than the image from the 1 CCD chip digital cameras, and the answer is yes.
Some colors are more accurate and brighter and the overall image is crisper and cleaner.
You'll have to decide whether the best possible image is worth the extra size and cost of the TRV900. Our housing for the SONY MiniDV cameras fits all of them, so if you change cameras or upgrade later to a TRV900 you can use the same housing. We add another hole in the camera's mounting plate and there is no cost. The overall size of the PC cameras is slightly smaller, as are their underwater housings. Careful study of the PC110 camera reveals virtually no improvements in the features that matter underwater.