In the following I will describe how to archive some of the often asked things, which can not be done with dws2 alone. This is done by patching the results from dws2 before burning the DVD. For the patching you need two tools which are freely available on the web:
Both tools you can get from www.videohelp.com
. (Go to the tools section and use the search option.)
First a few general explanations about patching DVD:
If you look on a DVD with windows explorer you will find (at least) two folders:
AUDIO_TS and VIDEO_TS. On video DVDs only the later is interesting. Look at it. It contains files like:
and so on. The files with extension .BUP are duplicates of the same named files with extension .IFO (a backup in case a .IFO is not readable). The .IFO files contain the description of the content of the DVD, what to play in which sequence and so on. The .VOB files contain the video and audio data and are very similar to mpeg2 files.
All commands of a DVD are stored in the .IFO files with the exception of the button commands of the menus, which are stored in the .VOB files.
(If you want to know more details I can recommend the book DVD Demystified from Jim Taylor, which explains nearly every detail of a DVD. E.g. aspect ratios are covered on more than 15 pages.)
On DVDs created with Ulead¡¦s DWS2 all menus are located in VIDEO_TS.VOB. All non menus are in one of the VTS... files.
General workflow for patching a DVD:
1) Create your DVD as usual with dws2, but in the finish step in the "burn project to disc dialog" select "create DVD folders" (deselect "burn to disk" and "create disk image file") and specify a folder on your hard drive. When dws2 finished you will find the structure which I described above in this folder. Close dws2. Eventually make a backup of the VIDEO_TS folder.
2) Do all necessary patches on the files in this folder as I describe below.
3) Restart dws2. You don¡¦t need to open a project. Go to the finish step and select "burn disk image or DVD folder". Select DVD folder and enter the folder where you had stored your DVD in step 1). You can now burn your DVD. If you do it the first time its a good idea two burn to a RW disk.
Now let¡¦s start with the simplest patch: creating 16:9 menus.
Note: For this your videos or still images you used for your menus in dws2 should had been already in the format 16:9, since we will change only how they are displayed, not what they contain. Click here for a guide
Start pgcedit. Press "open DVD" (first button in toolbar, or use file/open DVD)
. Navigate to your VIDEO_TS folder an press ok. If a "scan bovs" dialog appears, you can abort it. In the left part of the screen you will see a cryptically looking list:
VMG, First Play PGC
VMGM, LU1(--),1 (dummy) TitleM
VMGM, LU1(--),2 (dummy)
VMGM, LU1(--),3 (dummy)
VMGM, LU1(--),4 (dummy)
VMGM, LU1(--),5 (0.00) 4b
VMGM stands for "video manager menu", LU1(--) means "language unit 1, language not specified" and dummy means that there is no video associated with this line. The increasing number is the number of the PGC (program chain). Ulead¡¦s dws2 places the first menu always (as far as I figured out) in PGC 5. (0.00) means that it is a still menu (otherwise you can see the duration) and "4b" means that this menu contains four buttons. I am sure you can now interpret the next line yourself.
(If not it doesn¡¦t matter. You can proceed without it.) (Picture}
Click on the line with the "5". (On the right part of the screen you can see programming instructions associated with this pgc. You don¡¦t need to understand them for this patch.)
Click on the "preview current pgc" button in the toolbar (the rightmost button with the eye, or use preview/preview pgc from the menu). You will see your first menu. An information dialog also appears. (If not, check the info checkbox in the preview window.) This information dialog will show you, that your menu has aspect ratio 4:3.
Close the preview.
Now double click the line with the "5" (you could also click on some other line, as long as the line belongs to VMGM. As an alternative you could also click on the "Edit PGC" button on the left side of the button toolbar).
In the appearing dialog click on "Current domain stream attributes".
A dialog appears which shows you that the video is 4:3. Change it to 16:9. You can also check "automatic letterbox" and "automatic pan&scan", just as you prefer. Click "ok" and in the edit pgc dialog also "ok".
Click on the save DVD button
(the second from left in the toolbar, or use file/save DVD). (Pgcedit will create a backup of your ifo files.)
Now do what you have done before - preview again the current pgc. The info dialog will still show you 4:3!!
What had you done wrong? Nothing, but what you did was simply not yet enough. If you now burn your DVD it will play well in some players, but not in all (my father has such a silly thing
). You have changed just the ifo (and bup) file, but the vob file contain also format information. For that we use the other tool.
Start DVDpatcher. Drag VIDEO_TS.VOB onto DVDpatcher (or use the browse button).
In the right part DVDpatcher shoes you the current setting of the video, in the left you can select the new settings.
Be careful to select everything identical to the right
, with on exception obviously: set the aspect ratio to 16:9. Then select "patch entire file" and click "patch now". Confirm the following dialogs.
If you like you can now check again with pgcedit, to see that your menu is now really 16:9.
Burn your DVD.
Was this complicated? Perhaps, if you did it the first time. Once you had done it three times you can do it while you are sleeping.
I will add more advanced techniques next weeks.