In a technical sense, the VIDEO_TS folder already contains the video data in DVD format. A Video DVD is the contents of this VIDEO_TS folder burned onto a DVD+/-R disc in a hybrid ISO9660+UDF filesystem. As Steve Rowe has mentioned, Video DVDs use UDF v1.02.
See Doom9's DVD Structure article for details of the filetypes. When burned as a Video DVD, the files in the VIDEO_TS folder are layed out on the disc in a particular order. For example (notice the files are not layed out in alphabetical order):
VIDEO_TS.IFO -- VIDEO_TS.* is the first play item
VIDEO_TS.VOB
VIDEO_TS.BUP
VTS_01_0.IFO -- VTS_01 is the first title set
VTS_01_0.VOB -- the _0.VOB is the title set's menu
VTS_01_1.VOB -- the _[1-9].VOB is the title set's video content
VTS_01_2.VOB
VTS_01_0.BUP
VTS_02_0.IFO -- IFOs contain navigational information
VTS_02_0.VOB -- VOBs contain Video, Audio & Subtitle streams
VTS_02_1.VOB
VTS_02_0.BUP -- BUPs are backup IFOs
Many data burning utilities can create Video DVDs, but you need to make sure they don't try to burn as a data DVD -- data DVDs won't necessarily lay out the files in the proper order, and may use the wrong filesystem for the disc.
If you have the mkisofs
command available (in the Terminal on MacOSX and Linux, or Windows with Cygwin), or the hdiutil
command on OSX, you can make a ready-to-burn ISO with one of the following commands (source):
# INPUT_FOLDER is the folder that contains the VIDEO_TS
mkisofs -f -dvd-video -udf -V VOLUMENAME -o OUTPUT.iso /path/to/INPUT_FOLDER
hdiutil makehybrid -iso -joliet -udf -udf-version 1.02 -default-volume-name "VOLUMENAME" -o OUTPUT.iso /path/to/INPUT_FOLDER
The output ISO file can be burned with any burning utility program.
DVD Shrink can do this if you use the "Re-author" mode. No need to rip it first - just go to "open disc", then click on "Re-author". From there you can add the titles you want, as well as removing unnecessary audio tracks.
Best Answer
Since it's a video, and only two sectors in total, not much. However, if it were up to me, I would re-burn the image to a different disk. Write errors do occur depending on the quality of the media (1 in 10 for cheap discs, 1 in 100 for quality ones). If that was text, encrypted data, or other data, I would not risk it.
For your information, a sector on a DVD is only 2048 bytes, or 2 kilobytes. Since the verification only tells you the sectors do not match, but doesn't tell you which bytes are different, then assume that the whole 2 kB is different (it could only be a single bit that doesn't match, but you don't know).
However, let's put that into perspective. You have two bad sectors (so 4 kB total) on a DVD with a capacity of just over 4 GB. So, let's make things simple (and assume 1 kB = 1000 bytes), and assume that your DVD has 4 GB of data, which equals 4,000 MB, which equals 4,000,000 kB. So, you lost 1/1000000 of your data.
For a 2 hour video, this would equate to 0.0072 seconds, or 7.2 ms of lost information (assuming a constant bit rate). If your movie is at 30 frames per second, then in total you only lost 0.216 of a single frame in total. So for both of those bad sectors, you lost 1/10 of the video information for a single frame - and that's a worst-case scenario.
You can easily see why a few corrupted sectors really doesn't matter for video information. If we're talking about raw text, however, and you just lost two sectors, that could be very detrimental. If 1 character takes up a single byte, then you just lost 4000 characters of text - and that is almost always a big deal.