Based on the context of VM troubleshooting (specifically relating to VMware s???.vmdk snapshot issues), a 1536 byte segment is a crucial fragment of a sparse file's metadata.
Are you trying to from a snapshot or fix a parent file ? Knowing this will help me guide you to the next step. VMX file corrupt | VMware vSphere - Broadcom Community
The binary files within this zip were generated using dsfo.exe to isolate the metadata: for %i in (*-s???.vmdk) do @dsfo.exe "%i" 0 1536 "xxx-%~ni.bin" 4. Intended Use
These logs are intended for inspection of parent/child file relationships, CID (Content ID) inconsistencies, or parent CID mismatches in a vCenter or VMware Player environment. To help you analyze these logs, could you tell me: What did you receive from the VM?