Corrupt AVCHD file header?? at DVinfo.net

Chris Harding · April 9th, 2013, 04:06 AM

Hi Guys

Something I have noticed now and again it when rendering a clip in Sony Vegas the rendering dies after about 5% and goes into error. The fault seems to be at the very front of the file always (I have had 3 clips do this so far) so it might be corrupt header info?? I have no idea??

Bear in mind that I create a huge number a clips each week (a wedding with over 100 and then 5 or 6 Realty shoots each with 16 clips per shoot) so it's a tiny percentage ... I had just one this week and if you trim the first 5 frames off the front of the file it renders perfectly.

Anyone know why this occurs??? It's a east workaround of course by including a bit or pre-roll before you start (sorta count to 3 and then start the real footage so you have a leader of 30 odd frames which can be culled if there is an error)

I'd still like to know what causes it???

Chris

James Manford · April 9th, 2013, 11:27 AM

Download a different editing package and try rendering the same files.

This sounds like an issue with Sony Vegas rather than the camera.

Marlon Martins · April 9th, 2013, 03:08 PM

what version/build of Vegas are you using?

Chris Harding · April 9th, 2013, 05:38 PM

Hi Guys

The Version is 10E 64 bit Pro and I very much doubt that it's the NLE as it has done thousands of clips and never an issue ...I cannot see any issue on the vision on the first 30 frames stepping thru frame by frame but it seems the camera might have scrambled some data or there is a problem when the AVCHD clip is actually created on the card maybe??

Not a big deal though ..I always add a bit of pre-roll and post-roll to all my shots anyway so I'm covered.

Chris

James Manford · April 10th, 2013, 12:23 AM

If it's a faulty header, then your camera or SDHC card is faulty isn't it ?

I would download a trial version of some other NLE just to double check.

April 9th, 2013, 04:06 AM	#1
Chris Harding Inner Circle Join Date: Jul 2009 Location: Perth, Western Australia Posts: 8,441	Corrupt AVCHD file header?? Hi Guys Something I have noticed now and again it when rendering a clip in Sony Vegas the rendering dies after about 5% and goes into error. The fault seems to be at the very front of the file always (I have had 3 clips do this so far) so it might be corrupt header info?? I have no idea?? Bear in mind that I create a huge number a clips each week (a wedding with over 100 and then 5 or 6 Realty shoots each with 16 clips per shoot) so it's a tiny percentage ... I had just one this week and if you trim the first 5 frames off the front of the file it renders perfectly. Anyone know why this occurs??? It's a east workaround of course by including a bit or pre-roll before you start (sorta count to 3 and then start the real footage so you have a leader of 30 odd frames which can be culled if there is an error) I'd still like to know what causes it??? Chris

April 9th, 2013, 11:27 AM	#2
James Manford Trustee Join Date: Jan 2013 Location: London, UK Posts: 1,393	Re: Corrupt AVCHD file header?? Download a different editing package and try rendering the same files. This sounds like an issue with Sony Vegas rather than the camera.

April 9th, 2013, 03:08 PM	#3
Marlon Martins Regular Crew Join Date: Apr 2008 Location: Torres, Brazil Posts: 115	Re: Corrupt AVCHD file header?? what version/build of Vegas are you using?

April 9th, 2013, 05:38 PM	#4
Chris Harding Inner Circle Join Date: Jul 2009 Location: Perth, Western Australia Posts: 8,441	Re: Corrupt AVCHD file header?? Hi Guys The Version is 10E 64 bit Pro and I very much doubt that it's the NLE as it has done thousands of clips and never an issue ...I cannot see any issue on the vision on the first 30 frames stepping thru frame by frame but it seems the camera might have scrambled some data or there is a problem when the AVCHD clip is actually created on the card maybe?? Not a big deal though ..I always add a bit of pre-roll and post-roll to all my shots anyway so I'm covered. Chris

April 10th, 2013, 12:23 AM	#5
James Manford Trustee Join Date: Jan 2013 Location: London, UK Posts: 1,393	Re: Corrupt AVCHD file header?? If it's a faulty header, then your camera or SDHC card is faulty isn't it ? I would download a trial version of some other NLE just to double check.