The max size allowed on a single layer DVD is 4.37GB (technically 4.38GB, but aim a little lower, just to be safe!). 4.65GB is too much for a single disc. Ignore the "4.7GB" written on the disc, that is marketing mangling of the space available.
Unfortunately, there really is not anybody here available to assist with that exact program, DVD-Lab. It falls below our needs and standards for projects.
There are really two programs that I would suggest:
1. Ulead DVD Workshop 2 is by far one of the easiest authoring programs to use, with many advanced and professional-level features, yet with an intuitive interface that is fairly simple to operate. This software once cost up to $500, but can now found for
as little as $99 brand new! It's technically a "discontinued" product, ever since Corel bought out Ulead, so it can be hard to find. Luckily,
B&H has it for an excellent discount!
2. TMPGEnc Authoring Works 4 (formerly known as TMPGEnc DVD AUthor) is an admirable second choice, a product made for consumers. It's not quite as feature-rich as DVD Workshop 2, but it's just as easy to use (maybe even easier, depending on who you talk to). I highly recommend it for menu-less DVD authoring, to create DVDs that play like a VHS tape would (just insert it, and it plays!). You can buy TMPGEnc Authoring Works
directly from the software company for $99. I like TAW4, but honestly, when it's the same price, Ulead DVDWS2 is the no-brainer choice, assuming you're after really nice DVD menus. The only thing TAW4 does that DVDWS2 cannot is menu-less discs, and some Blu-ray authoring.