I used a Samsung slim external DVD writer TSSTcorp CDDVDW SE-S084C and burned approx 4.2 GB on a 4.65 GB windata disc at 8X. The Windata disc had an obviously fake MID of MCC 004.
I used Nero essentials 9 which came bundled with the drive. Nero reported a bad file during verification. The data was all flv files. The bad file would play part way through then my viewer (VLC) reported it could no longer read the format.
Here is a Nere disc speed scanDisc picture. Nero wont let me do disc quality:(