- Posts: 390
- Joined: Fri Jan 15, 2016 5:09 pm
Hi all,
After a shoot today with a Ursa Mini 4.6K (latest update), I succesfully downloaded 1 Lexar 3600X 256GB card. Sadly, I could not download the 2nd Lexar 3600X, also 256GB.
I know that such things happen frequently, but today's case is most peculiar. What happened is OUT of technical explanation, OUT of the law of physics, if you will...
So let me try to explain:
1.
I put the 1st Lexar card and download it to a MAC laptop. Lexar USB 3.0 reader. All 65 files are succesfully copied. They are numbered from 001 to 065 so there is no mistake about that. Their full size is of 238GB.
2.
After that I swapped to the 2nd card and continued to shoot normally...
During the shoot, I reviewed the files from the 2nd card inside the camera - playback was alright.
3.
Then I put the 2nd Lexar card. And here is the thing - the MAC OS shows, that the files inside the 2nd card are IDENTICAL to the files, that were copied from the 1st card, 2 hours ago. What ???
It seems, as though the MAC OS sees the same card. That is physically impossible, since there is no connection between the 2 cards and no file transfer was initiated with the 2nd card.
Of course, these "phantom files" were corrupt. They cannot be opened, since they cannot even exist in the 2nd card. They exist only in the 1st card, but the OS sees them inside the 2nd card.
All of the file names and sizes match.
Tried to read on Windows - same thing.
Tried to read back in camera - it cant detect any files.
I am shooting with this camera for more than 1 year now and I have downloaded hundreds of cards. This is a first... and I looked very terrible, trying to explain to my client, a "ghost files" theory suited for the "X-files" TV show...
After a shoot today with a Ursa Mini 4.6K (latest update), I succesfully downloaded 1 Lexar 3600X 256GB card. Sadly, I could not download the 2nd Lexar 3600X, also 256GB.
I know that such things happen frequently, but today's case is most peculiar. What happened is OUT of technical explanation, OUT of the law of physics, if you will...
So let me try to explain:
1.
I put the 1st Lexar card and download it to a MAC laptop. Lexar USB 3.0 reader. All 65 files are succesfully copied. They are numbered from 001 to 065 so there is no mistake about that. Their full size is of 238GB.
2.
After that I swapped to the 2nd card and continued to shoot normally...
During the shoot, I reviewed the files from the 2nd card inside the camera - playback was alright.
3.
Then I put the 2nd Lexar card. And here is the thing - the MAC OS shows, that the files inside the 2nd card are IDENTICAL to the files, that were copied from the 1st card, 2 hours ago. What ???
It seems, as though the MAC OS sees the same card. That is physically impossible, since there is no connection between the 2 cards and no file transfer was initiated with the 2nd card.
Of course, these "phantom files" were corrupt. They cannot be opened, since they cannot even exist in the 2nd card. They exist only in the 1st card, but the OS sees them inside the 2nd card.
All of the file names and sizes match.
Tried to read on Windows - same thing.
Tried to read back in camera - it cant detect any files.
I am shooting with this camera for more than 1 year now and I have downloaded hundreds of cards. This is a first... and I looked very terrible, trying to explain to my client, a "ghost files" theory suited for the "X-files" TV show...