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Homemade DVD Copy Protection….simple but it works
I searched the Archives and other boards …and it’s true there is no sure way to copy protects DVD’s that we make for jobs like weddings and special events. If someone wants to copy our work they will find a way.
But
I have found a way which seems to work…Keep in mind that even locks on doors only keep out some people and a professional crooks will have no problem picking the lock .On other boards some of the responses refered to putting a scratch on the DVD but nobody ever seem know if it would work.
This is what I discovered…Let me know if anyone is using this technique ?
Formatting data for a DVD starts at 22mm from the center and Video data starts at about 24mm from the center of of the disk. So any mark put on the disk between 22mm &24mm will make the disk un-readable.
I use Studiopro DVD 3 to create my DVD ( my test was basic play only DVD with no menus )
my video is two hours long so I compressed it using the about 3.1 setting ( Compressor Preset for 120 minutes )I also created a 10 minute clip with a moving background and a title which states ” Advance to Next Chapter to view Show ” I found that the clip needs to have movement or else the file size will be too small when compressed. My 10 minute clip was compressed at the same rate as my video program which gave me about a 240 mb file. If the file is too small it will be difficult to locate on the disk.
In SPDVD3 I put the 10min Clip first on the timeline followed by my Video program
I added all the chapters to my video program …. the video starts at Chapter 2I set the first play setting in SPDVD to chapter 2 which now will bypass the first 10 min clip
I also set the last chapter to jump to chapter 2
If your DVD has a menu set it up to bypass the first chapter ( I did not test a DVD with a menu. let me know if it works ? )after many test ( ruined disk ) I found the exact spot for the first chaper
( I also found a way to test the location with out wasting a disk . Use a fine point black sharpie pen and put a small mark about 4mm long running in the same direction as the encoded data …like the grooves in an old LP record. The sharpie works great because it will wipe off with Alcohol and you can test again )
The black mark will cause the DVDplayer to freeze and give you the exact time on the display counter.I found that the 10 min clip ( first chapter ) was about 25mm from the center and extended to about 28mm from the center of the disk. Once located I make a template for scratching the disk.
The template was a Clear plastic DVD disk which comes with your bulk DVD’s to protect them in shipping
using my test DVD with the black sharpie pen mark as a guide I drilled a small hole in clear plastic template with an Exato knife. the hole should be very small Just big enough for a paper clip which is just the right tool to scratch the disk.place the DVD and your template on a Bulk spindle. This is good way to make each scratch in the same place when you have 10 or 20 DVD’s to copy protect.
The scratch only need to be about 4mm long but must fall somewhere in the middle of the first chapter.
with the DVD on the spindle with the template on top, place the paperclip in the hole and drag it to make the short 4mm scratch.Now the DVD will play fine in players because the damaged area is the first chapter will be skipped.
but when the try to load the Video TS file on their harddrive they will get an error messageSo far my test seems to work… AND I know ripping programs will still allow it to be copied . but the average person will be stopped by this method.
Let me know if anyone has any other info which might improve this system.
thanks
Joe Garvin