Used some Datawrite Greys with this dye (thought I was getting fujifilm) and found PIEs going up to 300ish. This is not good as PIEs should not go above a maximum of 280 for any prolonged area. This is considered the MINIMUM standard for disk quality.
In comparison with my 3520a flashed to 3.04, using 8X DVD-R verbatim burned at 4X I am getting PIEs maxing at about 20 at the far end, and averaging at 3 over the whole disk. My PIF peak is usually 2 or 3 and averaging at 0.02ish. This is what constitutes a good burn!
I am new to DVD burning but have done some research and have found this - a 'good' burn is technically defined as PIE max 280 and PIF max 4. Individual spikes exceding these values are generally ignored. This means that your disk will be happily read by the drive you tested it on. However - the number of PIEs and PIFs relates directly to how tolerant the disk will be to future damage through scratches, heat etc. As far as we know, a disk stored in a dark, cool place and never used will last many years irrespective of the dye, manufacturer or burn standard as long as the above values are met. The oft mentioned disk rot is probably a myth.
From what I have seen on these lists, a rule of thumb 'very good' burn is one where PIE's are well below 100 - perhaps maxing at 20 or 30 at the outer edge - and PIFs average well under 0.1 or so for the whole disk and peaking at 2 or 3. I would not expect to get these values from cheap disks, but will expect a movie burned onto cheap (eg Ritek) disks to play if it at least meets the 'good' standard rather than the 'very good' standard.