C100 dual slot recording, anyone have issues?

[Darren Levine]

been trying out the dual slot recording, and seem to have issues. after several minutes 1 card will drop out, but the other will keep going. tried to narrow it down to a card issue, but can't decifer any consistent conclusion. i think it might be occurring at the 12 minute marker where it creates a new file, and maybe that's where it hiccups. could be a firmware issue. anyone got a c100/300 with two cards to try this out with? if you make it to 15 minutes then must be on my end.

[Peter Chaney]

I've yet to try the dual cards but I can try it out later tonight when I get home. If I remember correctly there is a setting in the menu that you have to change in order to record to both cards simultaneously.

Also, what speed/class cards are you using?

[Chris Hurd]

Please name the cards you're using Darren -- specifics, please!

Memory card choice makes a *big* difference...

[Darren Levine]

righty right...

SanDisk Ultra 32 GB microSDHC Class 10 UHS-1 Memory Card 30MB/s with Adapter SDSDQUA-032G-U46A

they have a minimum write speed of 10mbytes/sec, plenty of overhead for 24mbit/sec

i''ve yet to have a single issue recording to one card for any length of time, just the two cards at once, and i Think at that new file marker

[Chris Hurd]

Which camera are you using, Darren? C300 or C100?

I suppose I should implement thread prefixes in this forum so that the camera model can be designated in the thread title... I see you list the C100 in your sig, but it would be a mistake to assume that's what you're using this particular time (for example, it could be a client's camera or a rental). I would avoid microSD, if I were you... it's really best to use proper full-size SDHC or SDXC cards. Canon USA recommends certain cards, I'll see if I can dig up that list.

[Darren Levine]

C100, and while i'd have to agree with you on using regular SD cards, it still might be a firmware issue with dual slot recording, seeing as i've not had any issues recording to these cards in single slot mode.

i just dug up 2 regular sd cards which i'll try out as well

[Chris Hurd]

Thread title edited to add "C100"

[Peter Chaney]

A little bit off topic but Darren thanks for the video on the $7 Hard Drive cases I was browsing through Vimeo and stumbled upon your video LOL.

[Paul Joy]

Currently sitting in Amsterdam airport after shooting with the C100 and C300 today and exactly the same thing happened with my C100, set double slot recording, looked down part way throug and only one card was lit red, the other was green and the LCD showed remaining time for the active card yet the card that dropped out just showed ---.

I was really nervous that other one was going to crap out too but it lasted okay. Same cards as you, Sandisk 32GB Ultra.

Paul

[Darren Levine]

paul, are you using regular sandisk SDs or micro SD with the SD adapter?

and yes to alleviate your concern, in my tests i've let one slot die and the other records on for any length of time no problem, and if you do the recovery for the other card it seem to bring the file back OK.
runnin a test now to see if it's crapping out at the file switchover mark

[Paul Joy]

I'm using regular SD cards. I just carried on using one card, I didn't try to recover the bad one. I did have a strange issue last night when I did a full initialisation of the cards in camera. The A card initialised fine but the B card threw up an error, ejecting it and reinserting resolved it. Interestingly it was the A card that failed today otherwise I'd assume a bad card.

[Darren Levine]

well paul your experience and the fact that mine hasn't hiccuped yet with a pny 16gb and sandisk 32gb, certainly makes this an odd situation....

and on your prior note, one of the first things i suspected was one of my cards to be faulty, so i re initialized both, and switched the slots they were in, in the next test the supposedly good card was the one to cut out. i think it has to do with which slot was selected last.

19 minutes and still going now...

certainly could be a brand issue, maybe matching cards or matching sandisks has a glitch which needs firmware attention.

[Darren Levine]

47 min, no issues. odd. i'm leaning more towards matching cards somehow causing the issue.

To lend to this theory, if you record for even just a few seconds on one card before going ahead with dual card recording, seems to solve the issue, though i need to try that once more..

oh well, im off to costco.

[Andy Wilkinson]

Originally Posted by Chris Hurd

Which camera are you using, Darren? C300 or C100?

I suppose I should implement thread prefixes in this forum so that the camera model can be designated in the thread title.

Chris, I think this prefixing will be essential to avoid confusion. Good idea and one I've seen work well elsewhere.

[Darren Levine]

another quirk question for any c100/300 owners: is your evf glass loose? as in if you shake the camera even lightly, you hear it rattling around?