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TVPaint Pro 11.0.2 64bit

I'm exporting an animation that is about 14k frames at 24fps with sound, after it finished exporting the file amounted to 62.1 GB! What is this and how come TVPaint files always go up into the GBs when it comes to exporting? I know for sure that if I reconvert that same file using a video converter with the same dimension and such, the file size would dramatically decrease, but since I don't understand how TVPaint's exporting system works I just upload the raw TVPaint .avi file, which takes hours to upload online.

Here are my export settings:
As: Animation
Format: AVI (Directshow)
+Video Codec: Uncompressed (UYVY)
+Audio Codec: IMA ADPCM/Stereo - 44100 KHz - 4 Bits : 44.25 Kbps
Mode: RGBA
Alpha: PreMult.
Width: 1920
Height: 1080
Frame Rate: 24
Pixel Aspect Ratio: 1
Field: Progressive

I'm exporting an animation that is about 14k frames at 24fps with sound

+Video Codec: Uncompressed

At least, it proved that TVPaint is pretty solid & stable with big files.

TVPaint exports in many ways and in many different possible video formats. You have choosen to export an uncompressed .avi which is the best quality you can get out of TVpaint - but, yes, the files are very big. I don't know what you will do with your exported movie, but why don't you try a compressed format? Try avi internal / motion jpg / quality 70% and see what will happen.