Help!! AVCHD footage glitching when copied from card at DVinfo.net

Go Back   DV Info Net > Panasonic P2HD / AVCCAM / AVCHD / DV Camera Systems > Panasonic AVCCAM Camcorders

Panasonic AVCCAM Camcorders
AVCHD for pro applications: AG-AC160, AC130 and other AVCCAM gear.


Reply
 
Thread Tools Search this Thread
Old March 7th, 2009, 12:43 PM   #1
New Boot
 
Join Date: Jan 2009
Location: Los Angeles, CA
Posts: 11
Help!! AVCHD footage glitching when copied from card

Hello all,

I'm working on a documentary and shooting footage on the Panasonic HMC150. Shooting on SDHC class 4 cards.

I'm encountering a problem with some of the footage. It shoots to the cards fine, but when I copy the cards to the hard drive - EITHER via FCP 'Archive to Folder' in the Log & Transfer window OR at finder level - the footage on some (not all) of the cards gets all kinds of bad video glitches.

My workflow is: shoot, copy to field drive, re-copy to RAID 1 archive drive, transcode to ProRes 4:2:2. I'm working on an Intel MacBook Pro, 2.4GHz Core 2 Duo, 2 GB RAM, OS 10.5.6, FCP 6.0.5.

Luckily, the key footage for which this happened yesterday had not been deleted from the cards when I discovered the copy glitches, and I was able to transcode successfully directly from the cards. But now I have no backup files (except on the cards, which I'm not going to re-use until/if I solve this problem).

Also, I have encountered one situation in which the copied file wouldn't transcode fully from the copied files - though it could read the file fine - but would from the card.

I'm using a variety of class 4 SDHC cards - PNY, Kingston, Dane - have noticed problems with the 16 GB cards much more than the 8 GB cards. The card reader is a Dynex USB card reader.

What do you think could be is the problem? The cards, the card reader - ?? I have never had a problem with copying files before... Has anyone else encountered a problem like this?

I am planning to replace the cards and reader and would appreciate any input as to which are best...and what differences may be... Thanks!!
Dylan Nelson is offline   Reply With Quote
Old March 7th, 2009, 03:55 PM   #2
Regular Crew
 
Join Date: Sep 2007
Location: Kansas City, MO
Posts: 128
Dylan,

As a wedding videographer this kind of issue really scares me.

I would definitely try a different card reader and see if that fixes the problem.

Best,

Jordan
__________________
BerryGood Video LLC
Kansas City, Missouri
Jordan Berry is offline   Reply With Quote
Old March 7th, 2009, 05:57 PM   #3
Regular Crew
 
Join Date: Dec 2005
Posts: 189
Did you shoot in 720 or 1080?
Joe Riggs is offline   Reply With Quote
Old March 7th, 2009, 08:28 PM   #4
Regular Crew
 
Join Date: Jan 2009
Location: Meriden CT
Posts: 49
I had a similar situation with HMC 70. I use Panasonic 16g class 6 card. I found glitching in my footage after importing. Playback of the footage in the camera was perfect. I examed my footage frame by frame and found that glitches are sometimes caused by an extra frame. On two occasion removing a frame cleared my glitches. I reformat all my card in the camera. I try not to mix card brand when shooting.
Abraham Texidor Sr. is offline   Reply With Quote
Old March 7th, 2009, 08:52 PM   #5
New Boot
 
Join Date: Jan 2009
Location: Los Angeles, CA
Posts: 11
Sorry - I was shooting 720/24p at 1/50 shutter speed.

Does it really help to keep brands consistent?

I bought a new, Sony card reader and will get a Sandisk one if this one doesn't work -- it's a bit shocking that in LA so few retailers carry Sandisk or Transcend readers or cards (at least classes 4 or 6)...

Will keep you posted!
Dylan Nelson is offline   Reply With Quote
Old March 7th, 2009, 08:59 PM   #6
Barry Wan Kenobi
 
Join Date: Jul 2003
Location: North Carolina
Posts: 3,863
If the footage is good on playback in the camera, then that's proof positive that the footage is good on the card.

What you have here is a computer issue, not a camera or SD card issue. Try using a different SDHC card reader or something? If it's a USB reader, make sure it's not on a hub, or ... well, I don't know, there's any number of potential computer issues. But if the footage is good on the card, the camera and the card are not to blame.
Barry Green is offline   Reply With Quote
Old March 7th, 2009, 09:25 PM   #7
New Boot
 
Join Date: Jan 2009
Location: Los Angeles, CA
Posts: 11
Didn't work

New card reader didn't work, just glitched the footage in a different place. UGH!!
Dylan Nelson is offline   Reply With Quote
Old March 7th, 2009, 11:15 PM   #8
Regular Crew
 
Join Date: Sep 2007
Location: Kansas City, MO
Posts: 128
Quote:
Originally Posted by Dylan Nelson View Post
New card reader didn't work, just glitched the footage in a different place. UGH!!
Yeah it's not the camera or card then.
__________________
BerryGood Video LLC
Kansas City, Missouri
Jordan Berry is offline   Reply With Quote
Old March 8th, 2009, 05:39 PM   #9
Trustee
 
Join Date: Sep 2007
Location: Newark, Delaware
Posts: 1,029
Are you trying to edit off the card or copying it to your hard drive first?
Randy Johnson is offline   Reply With Quote
Old March 9th, 2009, 11:58 AM   #10
Regular Crew
 
Join Date: Aug 2008
Location: Playa del Rey, CA
Posts: 61
Quote:
Originally Posted by Dylan Nelson View Post
Hello all,

I'm encountering a problem with some of the footage. It shoots to the cards fine, but when I copy the cards to the hard drive - EITHER via FCP 'Archive to Folder' in the Log & Transfer window OR at finder level - the footage on some (not all) of the cards gets all kinds of bad video glitches.


Luckily, the key footage for which this happened yesterday had not been deleted from the cards when I discovered the copy glitches, and I was able to transcode successfully directly from the cards. But now I have no backup files (except on the cards, which I'm not going to re-use until/if I solve this problem).

Also, I have encountered one situation in which the copied file wouldn't transcode fully from the copied files - though it could read the file fine - but would from the card.


What do you think could be is the problem? The cards, the card reader - ?? I have never had a problem with copying files before... Has anyone else encountered a problem like this?

I am planning to replace the cards and reader and would appreciate any input as to which are best...and what differences may be... Thanks!!
Hi Dylan,

Just for grins, try converting the .mts files that are on your computer with either Toast 9/10 or MPEG Streamclip.

I often have situations like this where for some reason, the file structure in the folders get corrupted, and causes issues in FCP

I have always been successful with simply grabbing the .mts files, dropping them into a folder, and batch convert with Toast to whatever codec I prefer.

The beauty of this method, is that Toast doesn't give a squat about the folder structure, just feed it the .mts files, and boogie on. :)

Hope this helps.
Reuben Miller is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Panasonic P2HD / AVCCAM / AVCHD / DV Camera Systems > Panasonic AVCCAM Camcorders

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 10:03 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network