I'm using a card that I have several of (mainly for use in a camera).
This is 64 Gb Transcend, 300x (45 MB/s). I'm not sure it's anything special: it's seems very weird that your time coding is off.
You are very very very sure you put in the right basic info regarding timezone and the such?
Absolutely. And I tried all the permutations, i.e., leaving GMT where it was; adding 4 hours; subtracting 4 hours. It made no difference. The time was always 4 hours early with my 64 GB cards.
And as I said in a previous post: whatever settings I tried made no difference to my 32GB cards. They always displayed the correct time.
All these cards were formatted in the MP6.
EDIT: I haven't had a chance to check with the new firmware so maybe it will be resolved for me too. I don't think there was any mention of this problem in the update notes so I didn't bother looking.
The very fact that with either card whatever settings you put in made no difference would possibly indicate that your time was being pulled from your PC or whatever source you are using to look at what is on your card. If adding and subtracting gave you a 4 hour error on one card , then adding and subtracting gave you perfect time on another, than the card is not pulling time from the deck, because if it was than how would it give you correct time no matter what you set in the mix pre. It would seem to be an awfully strange coincidence that the mix pre set at all different times would somehow get your time zone correct, but perhaps your PC or whatever you use to read the card is set for your time zone. I understand that this does not explain the 4 hour error, but it seems to indicate that the issue is likely not the deck. Not to mention date created and date modified. Are you getting differences in those categories?
I'm not sure I follow your comments, but this time anomaly has only occurred with files recorded on the MixPre-6 and never on any of thousands of files recorded with multiple different recorders using the same computers and MacOSX.
Furthermore, the files were
exactly 4 hours off the actual time of the recording
to the minute. How could my computer know that? It had to have been written to the card by the MP6.
Anyway I will check with the new firmware and see if it fixed it.