[Alexander Kallas]

On your machine, look in About this Mac>System Report>Hardware>Disc burning>DVD Write, that will show you wether it is capable.
For double layer on the Mac in DVDSP, the DVD+RDL discs work best.

Cheers
Alexander

[Alexander Kallas]

Why only a single layer? your quality will be way down at that low data rate.
Go double layer.

Cheers
Alexander

[Alexander Kallas]

Your audio is probably 12 bit 44.1kHz, FCP plays best with 16bit audio at 48kHz.
You could try and render out the audio after capture is complete.

Cheers
Alexander

[Alexander Kallas]

Thank you,
of course, but I was thinking about the correct aspect ratio.
Which dimensions will be correct for PAL?

Cheers
Alexander

[Alexander Kallas]

Thanks Rafael, do you have any settings for a PAL video please?

Cheers
Alexander

[Alexander Kallas]

Clone your system, and then upgrade your OS

Cheers
Alexander

[Alexander Kallas]

Got it now, thanks Rafael

Cheers
Alexander

[Alexander Kallas]

Thanks Raf,
I want to adjust all the separate clips in the sequence simultaneously.
Each clip has been rubber-banded to a greater or lessor extent.

Cheers
Alexander

[Alexander Kallas]

Try trashing QT prefs

Cheers
Alexander

[Alexander Kallas]

Your original question covers too many interconnected topics. I’m really trying to help, try the manual again, and read without going ahead until you have digested what you have covered.
Your basic knowledge of this stuff is insufficient to get you an acceptable result.

Cheers
Alexander