Absolute Time In Pregroove

[Hernandez]

How is absolute time encoded in the 42 bits of an ATIP frame?

[RichMan]

Are you wanting to know how to capture the sine wave (wobble) of the ATIP and find the SYNC from the Bi-phase mark encoded data and decode it into bits/bytes such as current A-Time at the current location and the other info that is in the ATIP (Additional Information 1, 2 and 3, etc...)?

I hope I got all that worded correctly.

[The_Lillster]

Are you wanting to know how to capture the sine wave (wobble) of the ATIP and find the SYNC from the Bi-phase mark encoded data and decode it into bits/bytes such as current A-Time at the current location and the other info that is in the ATIP (Additional Information 1, 2 and 3, etc...)?

I hope I got all that worded correctly.

I don't know what the other guy wants, but I want to know how to do the stuff you just said.

How do you do it?

[klchin]

Hi everyone,

Need some confirmation.

Can DVD Rom driver used to read ATIP, with command op code 43.
If yes, how.

Because I had download some ATIP reader, but all failed to read
with DVD Rom drive. Not sure with CDRom drive.

Regards,
KL Chin

[Truman]

Can DVD Rom driver used to read ATIP, with command op code 43.
If yes, how.

The MMC command op code 43 is "Read TOC/PMA/ATIP" and yes it is a way to read the ATIP. Reading ATIP is not a restriction of the software* on the PC, rather it is a restriction of the drive's hardware/firmware.

Most DVDROM/CDROM readers are designed to not support such commands in their hardware/firmware.

*Unless it was intentional by a tray program.

PS. Not to be bad, but you shouldn't hijack this thread, in future, instead you should create a new thread.

[klchin]

Hi Truman,

Thx for your info.

BTW, sorry guys, i dun hv intention to "Hi-Jack" this thread.
I thought some how related to ATIP.

Regards
KL Chin