Here are two independent stories the only link is the cards they are using…
Vince using a Sony NX5… “Had A wee problem tonight while filming a local dance show. Using two NX5s to film,one on a wide shot plus one NX5 for close ups etc.
Without warning mid way through the first half, the close up Camera LCD screen went blank,a warning came up saying something about corupt media etc, then the camera shutdown by itself and then re-booted,another warning came up saying that recording or playback can not take place until the software has checked the card out for faults etc. I pressed enter to check the card for faults and within a few seconds was able to resume recording.
Unfortunately 20 odd minutes of footage was lost,7 dances to be exact,everything filmed up to the crash point was gone from the Transcend Card,the remaining dances up to the end of the first half were ok.Card was on its 3rd use with no problems before.
Fortunately the wide camera captured everything on a static wide shot so all is not lost but i must admit i am stuned to have lost the footage i did.Thank God it wasnt a wedding.
Have you heard anything like this from other camera operaters!!. This is the first time i have had any hicups with the NX5 using the Transcend Cards-Class 10, 16 GIG type.”
Today I get this Email…
Chris using a Sony MC50… “Had a major glitch last night while shooting a recce of “Bad Girls” for Saturday. Following your reports of problems with early shots, as at Jan’s party, I always shoot four short shots after formatting a memory card. They played back fine, as usual. Started recording the show and after about twenty minutes a data warning appeared on screen for a couple of seconds, then the whole camera shut down and restarted. I got going again and the problem did not recur, but ALL data recorded before the fault was missing – including those four test shots!
I managed to ingest the footage recorded after the fault and then decided to attempt a data recovery of the missing scenes by invoking the option to “Repair Image Database Files”. This reported no error, so I mounted the SD card on my Mac and used a utility to display hidden files…
You can see the clip info demonstrates that ten scenes were present – recorded AFTER the fault – but there are no .MTS files visible. Worse still, the footage no longer plays in the camcorder, yet the data is still there because the card registers as full.
I conclude the following, which, if you concur, you may wish to put out as a warning to other users:
1. If you encounter any recording fault, ingest all recorded footage prior to running any tests or search.
2. Unless ICONS are missing from your data display, do not run the ‘Repair Image Database’ utility.
3. Do not use a utility such as Cocktail in an attempt to retrieve lost data as this may further corrupt your files.
I still wonder whether this fault is memory card-related since the faults you experienced at Jan’s party and last night’s shoot were using the same (Transcend 16GB Class 10) card. I’ve not had any trouble with my other (Transcend 16GB Class 6) cards. That said, the suspect card was recently used to record a music concert and behaved perfectly. Have you ever had a problem recording to the internal memory?”
So you see these accounts are at least 3 months apart using different Sony camcorders the interesting factor that seems to run between them is the use of Transend Class 10 cards which would in my opinion be the number one suspect. To put it in perspective hundreds of people all over the world are using solid state day in day out with little to no problems. I myself on the whole use Transend SDHC class 10 cards and have also suffered lost footage twice but twice out of hours of successful filming with class 10 Transend SDHC cards leads me to one simple conclusion…
If you are filming an event like a wedding ceremony or a dance show where you are liable to have prolonged read/write sessions it would be prudent to use cards like SanDisk which are guaranteed to give you 30MB/s rather than depend on Transend cards that may be class 10 but only sustain 20MB/s and remember that speed is variable.
The one major problem with solid state is it’s unforgiving, if you are filming and for any reason the simplest being your battery runs out…you loose everything from the point you pressed the record button and that may be the whole of someones wedding ceremony and your reputation down the spout.
It is always advisable to loose 2-3 minutes of someones wedding in order to stop recording and power down your camcorder to change batteries than chance loosing everything and one other good bit of timley advice is do not span footage from one card to another, once again stop the recording and change card slots, spanning causes more misery than you can imagine.