What kind of discs are used in DVD pressing?

[blu-ray fan002]

What brand or kind of discs are used when Hollywood makes DVD copies of movies? They appear to be cheaper, more flimsy discs? Has anyone else noticed that? I know Hollywood makes thousands of copies which might be why they use less quality discs.

[ryoohki]

Originally Posted by blu-ray fan002

What brand or kind of discs are used when Hollywood makes DVD copies of movies? They appear to be cheaper, more flimsy discs? Has anyone else noticed that? I know Hollywood makes thousands of copies which might be why they use less quality discs.

The process of original media is way different than burned media. Dual Layer on DVD and BluRay are glued together by a machine..

[blu-ray fan002]

I mean what brand of discs are used when making copies of a movie, like when a new release comes out?

[ryoohki]

Originally Posted by blu-ray fan002

I mean what brand of discs are used when making copies of a movie, like when a new release comes out?

There's no Brand.. it's a pressing facility. Composed of many material coming from different company

[WriteSimply]

What ryoohki said.

You have to understand the manufacturing process. Blank CDs/DVDs/BDs have no pits on them, from which the 0s and 1s are read from. The pits are burned by the CD/DVD/BD burner.

CD, DVDs and BDs from movie studios (or data discs) are made by pressing a substrate layer to a master disc that already has the 0s and 1s. Then a reflective layer is applied to this layer.

This is why the data side of pre-recorded CDs/DVDs/BDs look different from the blanks. The reflective layer are different.


fuad

[Anthony P]

there are no disks. To simplify a bit it is a special machine that uses melted plastic and spins it into a disk, the machine then uses the master to etch out the plastic and then a thin layer of "metal" is added (this is the data layer) then more plastic is added and spun.

With CD which was only one layer you span the first layer, metal then the second layer and then the label. With DVD and dual layer it was like two CDs that where 1/2 as thick and then you glued them together. With BD you make the first thick layer, then the data layer, then a thin layer of plastic, then an other data layer then an other thin layer, then the Hard coating.


I put "metal" because for CD I think it was actually metal (aluminium if I am not mistaken. But with multi-layer disks the top layer needs to be semi impermeable (i.e. it needs to bounce back the light but not all of it so that the player can read the second layer.