I've started editing videos for DVDs and Blu-rays a few months ago, and I'd like to know which settings are better for me. I was wondering about buying a Mac, is it better than a PC with the same settings?
Don't know where you are located, but this company is specialist in making PC's for Premiere Pro:
The guys hang out here too, and help a lot of people with questions / issues.
I must admit that I am a PC guy, and have build my own PC's, and have never had a mac.
Others might have other point of views of course
Let's start by saying that you get the same results with a Mac as you do with a PC. The quality of the DVD or Blu-Ray does not depend on the type of computer used to write it to disk or play it back.
A Mac of the equivalent power as a PC will cost much more. So, unless you are already a Mac user, there is no reason to switch. But if you are a Mac user, there is no reason (other than price) to change to a PC.
The answer to the question you asked is: Whichever computer you are more comfortable with is the better one.
The answers to the questions you probably should have asked require additional information: What settings are you using? Why are you unhappy with them?
The default presets for exporting in Premiere Pro should do the trick for you, however, most people would probaby be better served by bringing the Premiere Pro project into Encore and letting Encore make the encoding decisions.
if you are a Mac user, there is no reason (other than price) to change to a PC.
Actually, it does seem that the Adobe suite simply runs better on the PC than on a Mac. This I've seen even Mac users admit. So there is a second reason.
I was told I need improve only my video board
That's probably the only thing you don't really need to replace. Your CPU of choice is pretty far from ideal with modern HD media. You should seriously consider an Intel i7 3770K, which also means a new motherboard. And as mentioned, a minimum of 8GB of memory, with 16 being the better option.
Your current video card will work, but if you have enough money left after the above purchases, then you can think about upgrading it.
Whichever way you turn it, PC or MAC is your choice, but what you currently have, a Phemon II X6 with 4 GB memory and a GT520 is dead slow. It is definitely amongst the 10% slowest PC on our benchmark test, more than 10 times slower than a fast system and cannot be upgraded economically.
Your choices are simple: Get a completely new system, based on an Intel CPU. Think along these lines, i7-3xxx quad or hexa core CPU, 16+ GB memory, GTX 660+ video card and the other components to go with it.
I do like Steven's answers above and my own testing running Windows 7 and OSX 10.8.2 confirms results are quite similar between two identical configurations, but with the Windows platform you do have in addition to Steven's comments.: