i just finished a RED shoot with an outside production company. they purchased 20 RED CF cards for the shoot, and then threw them away. they claim they never reuse cards and QC is their number one concern. i contacted RED support, and they said their cards are designed for 100,000 cycles - which means if you write and erase them 4 times a day, they will last 68 years.
i'm blown away. is throwing away CF media a common practice?