I have a very small portfolio on Adobe Stock consisting of a mix of photos and videos. ive noticed that generally, the reviewers are more strict with photos compared to videos. Ive had a fair few photos rejected there but Ive never had a video rejected until now.

It's a 4k time lapse video and it's supposedly been rejected due to a technical issue. "Unfortunately, during our review we found that it contains one or more technical issues, such as unintentional shaking, empty black or white frame, compression and/or audio issues."

My video doesn't really contain any of those issues as far as I'm aware. And it was accepted on Pond 5. And a HD version of the clip was accepted on SS.

Interestingly, I used to have a different copy of the same video on AS in the not too distant past. I use Shotcut software these days for rendering stock videos and I used the prores codec for that particular 4k time lapse video which was subsequently accepted by AS. Later, I found out that Shotcut uses a fake / non-genuine prores codec which can cause issues during editing on Mac computers. So I removed that video from AS and the other stock agencies. Not long ago, I exported the same video again but this time, used the h264 codec and this is the copy that was rejected.

I do find it kind of ironic that AS accepted a video with a fake codec but rejected another copy of the same video that had a genuine codec.

Something really weird is going on at Pond 5 at the moment. Don't suppose anyone else is experiencing this? When I go to my uploads, there's nothing there. No video files are visible. It also says "Viewing 0." However, when I go to Recent Uploads, I do see some of my latest uploads there but only five of them. When I upload more files, it always remains at five. The oldest one disappears and the latest file appears at the top.

I notice for Pond 5, there's an option within Stocksubmitter to recode videos to Photojpeg if necessary. Would it be worth it? Does SS do a decent job of the conversion? Some of my videos do have the h264 codec but I doubt the bitrate of these clips would be high enough for an uncompressed codec like Photojpeg.

I started another update but I'm getting another one of those weird messages. It says:

"FirstChanceException: An existing connection was forcibly closed by the remote host
Trace0: - Intel32
System.Net.Sockets.Socket.EndReceiver (System.IAsyncResult)"

I wouldn't have a clue what this means.

This afternoon, I installed Stocksubmitter (having never used it before.) Several minutes later, I attempted to open the program but was informed that it had to do some updates. I saw a progress bar advancing across the screen, indicating the progress of the updates. All of a sudden, my Avast Antivirus software called out: "Threat Detected!" and prompted me to run a scan (which I did.) Meanwhile, all these messages started appearing on the screen containing unusual text. And it looked like the updates weren't successful anyway.

I'm actually reluctant to start up Stocksubmitter again unless someone can confirm that it's safe?

Remember too that 15 is not supported on Windows7.

Uh oh. I didn't realise this. Are there any older versions of Resolve available for download that I can run with Windows 7?

I'm in the process of trying to install Davinci Resolve on a laptop running Windows 7. Ive downloaded the initial software program from the Blackmagic website. There's a file (though not an .exe file) located in the Downloads folder with the Davinci Resolve name. Though when I double-click on it, it won't open. And nothing happens when I right-click on it and select 'Open'. Any idea why it's refusing to open?

Their prices are now comparable to Shutterstock and they're paying a higher commission.

Comparable to Shutterstock? I'd say a heck of a lot better than SS. On average, my HD sales at SS have been around $17 - $22. And these days, people are getting a lot of $1.50 sales for HD and 4k clips through SS. I think VB blows SS out of the water when it comes to stock footage earnings.

My main question is which one is the most international one? ntsc or pal? 24 or 30 fps?

Just to be clear - PAL is 25fps and not 24. Though I guess you know this by now from all the other contributors' replies. I generally stick to shooting in 25fps because I live in a PAL country (Australia.) Though not too long ago, I acquired a GitUp action camera for my quadcopter which only offers 30fps as a standard frame rate. So looks like I'll be forced to use 30fps for aerial footage. Some say there's less chance of flicker when filming at 25fps under fluorescent lighting but I believe your choice of shutter speed will also help significantly under those conditions, regardless of what frame rate your recording at.

Years ago, I used to shoot on motion picture film on a semi-regular basis. When shooting on super 8, I'd switch between 18fps and 24fps. When shooting on 16mm, I'd use 24fps exclusively. By the way, my Canon 1014E super 8 camera has a 54fps setting for beautifully smooth slow motion.

Interesting strategy. I have MPEG Streamclip but it won't work anymore. Ive heard of other people experiencing the same issue. I re-downloaded it from the website but that didn't make any difference. So yea MPEG Streamclip is no longer an option.

Ive had a hard time too figuring out which codec would be the most suitable. And I'm a Windows user also. I had just about made up my mind to use photojpeg because it offers clients more flexibility in colour grading. However, just like prores, it's likely to create huge video files. Last time I tried to upload a large 4k video to different sites, it took two whole days which is ridiculous. And constant breakdowns and restarts. I don't want to repeat that painful process again. Looks like I'll be forced to use h264 instead unfortunately.

I submitted a video to Videoblocks on 2 June 2018 and it still hasn't been reviewed. Are these long delays normal? There was another video I uploaded before that which only took a few days to get reviewed and accepted. That clip was using the h264 codec and the one that's currently in Limbo uses Prores but I doubt the codec has anything to do with review times.

I don't suppose Davinci Resolve offers Prores as an option?