After nearly ruining two live recording sessions I decided to investigate why I was having so many errors from my tapes at LP with my Optura 300. I also have a Sony TRV-900, and use the Canon as backup. I used Panasonic Professional Master tapes only.
The Optura 300 has just come back from Canon USA with a $150 repair and upgrade done on it (the chroma noise is much less, have they upgraded Digic recently?)
I bought a program called DVstreamer that embeds a digital file in the data stream going to the Optura 300. That way I can figure out the actual error rate, without having to rely on seeing MPEG2 artifacts.
I found that the problem was the tape.
I bought TDK, MAXELL and FUJI tapes and all worked properly. All, that is, except my prized Panasonic Professional Master tapes with their new super 4x density tape coating
I am now using Fuji 80minute on LP with no problems. Very few errors.
I did learn my lesson, and I will record data onto each tape with the Optura 300 BEFORE going out to a live shoot, just to check the tapes out. heck - it only takes a couple of hours
..Trevor..