[X Newbies] DVD -1 or +1

[TheMacintoshLady]

Vincent Cayenne tapped out this message on 6/20/2003 1:47 AM 

>See <http://timefordvd.com/tutorial/RecordableDVDTutorial.shtml> for 
>one explanation. Thus far, Apple has used DVD-R componentry, I 
>believe.

So DVD media should not be of the "rewritable" kind and I should get 
discs marked DVD-R not DVD+R discs? This means if my movie is only 150 MB 
I can't then add to it  at a later time?