35Mb/s long GOP MXF files getting corrupted.

Paul Steinberg · November 9th, 2009, 08:15 PM

Sorry for the delay, I got back from the job in Dallas and immediately had to head out to Prince Edward Island.

Back now and moved one of the corrupted 35mb/s MXF files from my computer back to a flash card and tried to play it. All I receive is "Aborting Playback" error message flashing.

Again, at 23.98Psf 35Mb/s the Nano is corrupting the first file on each card. When bumped to 50Mb/s...no problem.

I'll try recordings with the camera in DF/NDF but to the best of my understanding, when in 23.98P mode the camera is always recording non-drop.

Dan Keaton · November 9th, 2009, 08:19 PM

Dear Paul,

We will be looking into this.

What version of our firmware are you running?

This is displayed under System|About

Mike Schell · November 9th, 2009, 09:42 PM

Hi Paul-
I feel certain this is fixed in the new firmware to be released this week. Our revised Compact Flash read/write algorithm accentauted this problem and allowed us to quickly find the root cause.

I'll double check tomorrow, but this should be fixed with the new code.

Best-

Paul Steinberg · November 10th, 2009, 08:09 AM

Dan, take a look at the first post in this thread:

This is my configuration
Sony F900 camera @ 23.98Psf
Miranda DVC-800 (HDSDI output)
Nanoflash, 35Mb/s long GOP, PSF checked in/out, E-to-E checked, TC trigger, firmware 1.0.112
Cards: Sony 306x 16Gb part#NCFD16GP

Mike, thanks. Glad to hear it's getting fixed.

Dan Keaton · November 10th, 2009, 08:19 AM

Dear Paul,

Thank you.

Sorry, my mistake, I should have gone back and re-read the entire thread.

November 9th, 2009, 08:15 PM	#16
Paul Steinberg Regular Crew Join Date: Feb 2007 Location: Toronto Posts: 50	Sorry for the delay, I got back from the job in Dallas and immediately had to head out to Prince Edward Island. Back now and moved one of the corrupted 35mb/s MXF files from my computer back to a flash card and tried to play it. All I receive is "Aborting Playback" error message flashing. Again, at 23.98Psf 35Mb/s the Nano is corrupting the first file on each card. When bumped to 50Mb/s...no problem. I'll try recordings with the camera in DF/NDF but to the best of my understanding, when in 23.98P mode the camera is always recording non-drop. __________________ Paul Steinberg DP, Toronto \|+\|Canada

November 9th, 2009, 08:19 PM	#17
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Paul, We will be looking into this. What version of our firmware are you running? This is displayed under System\|About __________________ Dan Keaton Augusta Georgia

November 9th, 2009, 09:42 PM	#18
Mike Schell Convergent Design Join Date: Apr 2005 Location: Colorado Springs, CO Posts: 869	35 Mbps Corrupted Files Hi Paul- I feel certain this is fixed in the new firmware to be released this week. Our revised Compact Flash read/write algorithm accentauted this problem and allowed us to quickly find the root cause. I'll double check tomorrow, but this should be fixed with the new code. Best- __________________ Mike Schell Convergent Design

November 10th, 2009, 08:09 AM	#19
Paul Steinberg Regular Crew Join Date: Feb 2007 Location: Toronto Posts: 50	Dan, take a look at the first post in this thread: This is my configuration Sony F900 camera @ 23.98Psf Miranda DVC-800 (HDSDI output) Nanoflash, 35Mb/s long GOP, PSF checked in/out, E-to-E checked, TC trigger, firmware 1.0.112 Cards: Sony 306x 16Gb part#NCFD16GP Mike, thanks. Glad to hear it's getting fixed. __________________ Paul Steinberg DP, Toronto \|+\|Canada

November 10th, 2009, 08:19 AM	#20
Dan Keaton Inner Circle Join Date: Dec 2002 Location: Augusta Georgia Posts: 5,421	Dear Paul, Thank you. Sorry, my mistake, I should have gone back and re-read the entire thread. __________________ Dan Keaton Augusta Georgia