question about multiple titles on DVD using DVD Flick

[jimdagys]

I have DVD Flick (ver 1.2.1.3 build 348 ) and I am having problems putting 2 movies on one DVD. Using DVD Flick I can put the 2 movies on one DVD, and Media Player Classic will recognize the 2 movies ( and I can choose either one), but Power DVD will not. The only way to play the 2nd movie with Power DVD is to advance to near the end of the first movie and when the first movie is finished, then the 2nd movie will start. Likewise, when using a standalone DVD player, the first movie will play as soon as the disk is inserted, but the "root menu" button doesn't function, so I can't choose the second movie. To play the second movie, I need to advance to near the end of the first movie, and when the first movie is finished , the second movie will start. There is clearly something unstandard about how DVD Flick puts 2 movies on one DVD.
I have another question. I want to compare the final video quality of 2 options. Let's say for example I have 2 avi's on my hard drive. Each avi is 700MB and 2 hours long. Option #1: I use DVD Flick and make each avi into a DVD and burn them (total 2 disks). Option #2: I use DVD Flick and make both avi's into one DVD with 2 titles and
burn it (total 1 disk, 4 hours). My question is, will the video clarity of option #2 be exactly as good as option #1? Could I turn 3 (2.1GB, 6 hours), 4 (2.8GB, 8hours) or even 5 (3.5GB, 10 hours) worth of avi's into a DVD and burn onto one disk with multiple titles, with the same quality as if I just put one title on the DVD? Since a DVD disk is 4.2 GB, it seems that there would be no loss of quality if I put up to 5 titles (3.5GB worth of avi) converted to DVD on one disk.

[guns1inger]

4 hours on one disc will generally be much lower than two hours on one disc.

The exception this is

1. If you put 4 hours on a dual layer disc

2. The quality was crap to begin with

A two hour movie will be 4GB when converted to DVD at any reasonable level of quality. You cannot put 6 hours of DVD into 2.1 GB.

You need to star reading up about codecs, compression and just how all this video malarky works.

As for your first problem - can't say I have ever had an issue like it.