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Track 0 appears in ATI 2019 disk images

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Hi everyone - I hope everyone is having a great Holiday weekend. I'm trying to figure out why my ATI 2019 disk images have track 0 listed in them when I know that both of my disks are GPT. Acronis Disk Director 12 confirms this. MBR and track 0 is also listed in the restore operations list that appears just prior to being able to click on Proceed. Hoping to get some insights into this. Thanks!

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Rick, my understanding is that all disks will still have track 0 regardless of the partition system being used.  The thing that will be different is what track 0 is used to store.

I also understand that there is still a MBR record on GPT systems for compatibility with older legacy systems.

See webpage: Frequently asked questions about the GUID Partitioning Table disk architecture - for a detailed explanation of GPT and the use of both Track 0 and MBR on such drives.

What is a Protective MBR?

The Protective MBR, beginning in sector 0, precedes the GUID Partition Table partition table on the disk. The MBR contains one type 0xEE partition that spans the entire length of the disk. This is the same regardless of the number of partitions that are defined in the GUID Partition Table disk entry array.
 

Why does the GUID Partition Table have a Protective MBR?

The Protective MBR protects GUID Partition Table disks from previously-released MBR disk tools such as Microsoft MS-DOS FDISK or Microsoft Windows NT Disk Administrator. These tools are not aware of GUID Partition Table and do not know how to properly access a GUID Partition Table disk. Legacy software that does not know about GUID Partition Table interprets only the Protected MBR when it accesses a GUID Partition Table disk. These tools will view a GUID Partition Table disk as having a single encompassing (possibly unrecognized) partition by interpreting the Protected MBR, rather than mistaking the disk for one that is unpartitioned.