Registax 5 - file size problems

[turbo_pascale (Rob)]

I took about 50Gb of AVI's tonight of jupiter.

Each one is slightly over 2Gb (unfortunately). I completely forgot about this being kind of painful in registax (it's been a year since I have attempted any imaging! very, very rusty on the details)

Anyway, even with the "Vista" and "Extended >2Gb" option turned on, it cannot read the AVI files I made. I took some much shorter AVIs (for a laugh) of Neptune, and they load OK, so it's not a codec or some strange setting - it appears to be purely file-size based.

What can I do to save all this work? Is there a way I can split the file in to smaller chunks easily without breaking anything? It was the first clear night on a weekend I can remember for a very long time, and seeing was pretty good, so I am really keen to have a go at these files.

Thanks.
Turbo

[iceman (Mike)]

Robert,

Registax 5 handles file sizes over 2gb without problem. What error are you getting?

[Dennis]

Hi Rob

I have used VirtualDub to split AVI’s successfully so that Registax can then process them.

Cheers

Dennis

PS – I assume you are running Vista and not XP?

[iceman (Mike)]

What codec did you record in?

[turbo_pascale (Rob)]

Mike,

When I go in to the "Open File(s)" screen, if I click (just once) on the AVI, above the preview window it says "FILE CANNOT BE LOADED !"

Filename: jup0002 09-07-25 23-52-50.avi
Size: 2.19GB (2,360,921,088 bytes)

By Comparison, a neptune run (lots less frames!!)
Filename: nep0010 09-07-26 00-45-52.avi
Size 22.5 MB (223,674,880 bytes)

This just works.

Codec was Y800, video size is DBK31 native (ie 1024x768).
For most of the AVI's I ran 3000 frames at 30fps, a few of them 5000 frames.

The neptune ones, I had to use 5 second exposure just to see anything, hence only capturing a tiny amount of frames my comparison.

Dennis, I'll have to refresh my memory about Virtual Dub, been years since I touched that.

I am running Vista 64 if that is of any relevance. Last time I tried this stuff I was running 32 bit, and the older Registax 4 (or maybe 3!)

I might install on another PC just to prove it is Registax and not something else.

Thanks for your suggestions so far.

Turbo

[Dennis]

Okay. I’m on XP and I mistakenly had the Vista radio button selected and Registax would not load my 3000 frame AVI’s although they were less than 1GB.

When I then selected the radio buttons “Default” and “Avi>2Gb” everything worked okay.

Good luck with the problem resolution – imagine if you were the discoverer, processing the discovery images!

Cheers

Dennis

[turbo_pascale (Rob)]

I used VirtualDub to chunk up the files in to smaller pieces, and that seems to have solved the issue. Now just need to work out how to pick the best set of frames out of the 3 x 1000 frame chunks to merge them together for one stacking.

I'm assuming that this is fundamentally that the image size is much greater (1024x768 vs 640x480) hence it runs in to memory problems?

This pic is a slightly cropped image using all 1000 frames ("quality" never dropped below 95%).
Used the 10" LX200GPS at 6250mm (F25) with the Televue 2.5x barlow, and the Colour DBK31 at 30fps.

Focus could have been better, and I honestly think a collimation is in order as I don't think I've done that in years.

[turbo_pascale (Rob)]

From 2000 frames, same setup, but without the barlow (ie 2500mm F10).
Ganymede & Io at bottom left of pic.