would using an 80 minute cdr allow for a longer vcd? if the answer is yes , then it would be safe to say that there is nothing in the vcd standard that limits the time, that the time restriction is dependent on the media used?

74 and 80 minute disks are the exact same physical size, correct? so how is the added capacity created?

-- ndumu (ndumu@hotmail.com), January 21, 2000

Answers

Hi

This is referred to as over-burning.

Check out the full explanation at Adaptec's website (www.adaptec.com).

A word of caution, some CD-ROM drives cannot read beyond the 74min or 650MB sectors.

Regards NT

-- NT (i1x@nightmail.com), January 21, 2000.

Overburning is a different thing altogether. It has to do with writing on the run-out area. 80min CD-R discs have 80 minutes worth of DATA area. You can write more to them without doing overburning. They would also have the run-out area that you could write to during overburning.

As for the original question about whether 80 min CDs would give you a longer VCD, I haven't tried that.

-- dave mabry (dmabry@mich.com), January 21, 2000.

Yes, 80 min CD-Rs give you 80mins of audio and video. You can have about a five minute longer use than a normal CD-R. 80 min discs are used in the Titanic VCD from Malaysia and Hong Kong. Just make sure you CD deck(DVD players usually have no problems with these) is compatible with 80 mins, some aren't

-- The Lone Ranger (rutger_s@hotmail.com), January 21, 2000.

thanks for the answers to my first question, but can anyone answer this one: 74 and 80 minute disks are the exact same physical size, correct? so how is the added capacity created?

-- ndumu (ndumu@hotmail.com), January 21, 2000.

The center spindle piece in the middle of the CD is smaller on 80 min CD-Rs giving more room inside the circle to burn onto or use.

-- The Lone Ranger (rutger_s@hotmail.com), January 22, 2000.

The physical size of 74 min and 80 min CD-Rs are exactly the same. The difference is the pitch of the spiral groove. In the CD-ROM specification there is a minimum and maximum pitch (the space between grooves). 80 minute cds are just set to the minimum. That causes some very old CD-ROM drives a problem, but most can play them fine.

The Lone Ranger must have forgotten the ;-).

-- dave mabry (dmabry@mich.com), January 22, 2000.