I am not at all sure this is a legit steelbook copy.   The only matching steelbook i could find on looks, was for ps3 https://www.ebay.com.au/itm/186682515765  This matches even down to the single disc socket on the inside, legit pc steelbooks i have found seem to have two distinct disc sockets, and the male/female shepard on front/back.

Only came with disc 1 inside.  Matches below.


http://redump.org/disc/72200/
https://mega.nz/folder/LHJCjIJZ#Wmt0lzg97DqjlwIahDZROA

Users who wish to submit this information to Redump must ensure that all of the fields below are accurate for the exact media they have.
Please double-check to ensure that there are no fields that need verification, such as the version or copy protection.
If there are no fields in need of verification or all fields are accurate, this preamble can be removed before submission.

Common Disc Info:
    Title: Mass Effect 3
    Foreign Title (Non-latin): 
    Disc Number / Letter: 1
    Disc Title: 
    System: IBM PC compatible
    Media Type: DVD-ROM-9
    Category: Games
    Fully Matching ID: 72200
    Region: Europe, Australia
    Languages: ADD LANGUAGES HERE (ONLY IF YOU TESTED)
    Disc Serial: EAX07708180D

    Ringcode Information:

Layer 0 (Inner) Mastering Code (laser branded/etched): A0100973021XA911    13
Layer 0 (Inner) Mastering SID Code: IFPI LV88
Layer 0 (Inner) Toolstamp or Mastering Code (engraved/stamped): 
Data Side Mould SID Code: IFPI 6530
Data Side Additional Mould: 
Layer 1 (Outer) Mastering Code (laser branded/etched): A0100973021XB911    23
Layer 1 (Outer) Mastering SID Code: IFPI LV88
Layer 1 (Outer) Toolstamp or Mastering Code (engraved/stamped): 
Label Side Mould SID Code: 

    Barcode: 
    Error Count: 0
    Comments: [T:VOL] MassEffect3_DVD1
    Contents: 

Version and Editions:
    Version: (VERIFY THIS) 1.0.5427.1
    Edition/Release: SteelBook?

Extras:
    Primary Volume Descriptor (PVD): Disc has no PVD

Copy Protection:
    Copy Protection: Origin
    SubIntention Data (SecuROM/LibCrypt): 

Size & Checksum:
    Layerbreak: 2084960
    Size: 8395259904
    CRC32: 2907cbdb
    MD5: bdcf29ce82886bac369056c3dc3ff939
    SHA1: 127df6ea5e43e8feee86caf95349c6828d88e67a

Dumping Info:
    Frontend Version: 3.6.0-61f90a635ff56edcb9d643b21de55aa7795be907
    Dumping Program: Redumper (build: b665)
    Date: 2026-02-26 09:45:09
    Parameters: disc --verbose --skeleton --drive=E:\ --speed=16 --retries=100 "--image-path=PROCESS\Mass Effect 3 (SteelBook) D1" --image-name=MassEffect3_DVD1
    Manufacturer: ASUS
    Model: DRW-24D5MT
    Firmware: 1.00 (O01790C K8KG7QF1816)
    Reported Disc Type: DVD-ROM
WARNING: Mistakes ahead!
Learner driver in my big tonka dump truck.