PS2 RSOD Oversight? A Glitch? All Different Kinds Of Discs Testing With This

I Happened To Find This Random Thing While Playing Around With PCSX2, Being That I Inserted A Invalid ROM File Into The Emulator, And Then Change It Out For A PS1 Or PS2 Game ROM File Before The RSOD Shows, And That Is When I Was Surprised With What The Result Was! Wanted To Test It On A Real PS2 After This And It Worked! I Am Not Sure If I Am The First To Discover This But I Sure Never Found Footage Of This At All!

What Do You Think It Is? A Oversight? A Glitch? Please Do Tell Me If You Know!

Model Of PS2 Used: SCPH-70003 (PAL/Europe)
Video Editor Being Used: Sony Vegas Pro 17

0:00 Showing Disc Used For RSOD
0:07 PS1 Game (Black Disc) (Accidently Put In CD In The Wrong Area, Oops)
0:50 PS2 Game (Blue CD)
2:10 PS2 Game (Silver DVD) (Single Layer Disc)
2:58 PS2 Game (Silver DVD) (Dual Layer Disc)
3:50 Audio CD
4:22 DVD Video
5:35 Discs That Normally Cause A "Disc Read Error" Message In Browser When Failed To Read
6:30 Discs That Normally Cause A RSOD Error On Menu, Browser Or Even Boot When Failed To Read