C100: Corrupt Card??

I had something weird happen to me today with my C100 Mk I. Usually when I reformat a 32GB card, it shows 178 minutes of record time. Today after reformatting, my card showed 162 minutes. I didn't think much of it and started shooting like normal. Eventually my battery ran out and I powered down to change batteries. When I powered back up, the card again showed 162 minutes, like I had shot nothing. I switched the camera over to playback and the card showed no clips on it. I always keep a 128GB card in the other slot and dual slot record, so nothing was lost. I am assuming this is a corrupt card, and I plan to remove it from my rotation. But I wanted to double check to see if anyone else had something similar. I want to make sure its a card issue and not something with the camera.

Also, if you aren't utilizing the dual slot recording function on your camera, you should.
 
That's a scary feeling, sounds as if might be more of a media issue than a camera issue since it wrote to the other card in the other slot? If it were my camera, I would run a series of tests trying to only record and PB from the slot that gave you the trouble. Try switching media and seeing if it could have been a card issue. I am so paranoid that most shoots are recorded to the Ninja Blade in Prores HQ as well as dual card recording. I agree dual slot recording gives extra piece of mind, SSD is NOT the rock solid, bulletproof format that we always thought it would be back in the tape days. I have lost about as many digital cards as I used to have tapes eaten by the camera, about once or twice a year. Also had a defective SSD in the Ninja Blade do the same thing on a big green screen shoot at Fox a few years ago when I first got it. Thankfully the SD card from the camera saved my hide, even though it was AVCHD, I lit my green screen well enough that it keyed fine in post once transfered to Prores. Whew! Always dual record whenever possible.
 
Generally speaking, you should not invest in cheap memory cards just to save a buck, as the media used is lower grade quality, prone to losing data. I don't have a video camera anymore, but Sandisk and Kingston or Lexar media has never failed me. But cheaper cards I got included in an auction I won have.
 
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Generally speaking, you should not invest in cheap memory cards just to save a buck, as the media used is lower grade quality, prone to losing data. I don't have a video camera anymore, but Sandisk and Kingston or Lexar media has never failed me. But cheaper cards I got included in an auction I won has.

I have used Transcend cards for about 5-6years now. This is the first time I have ever had an issue with one.
 
Transcend is fine. I've had fewer dead Transcend cards than Sandisks.

Kingston is a second-tier brand nowadays, by the way. They haven't been premium for years.
 
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