[How to burn ISO 8,07 Go (8 672 346 112 octets) on DVD DL]

Hello,

I have a DL DVD that I have to duplicate.
Basically, it's a Verbatin Dual Layer DVD.

What I do not understand is that the capacity on the DVD is far exceeded: 8.07 GB (8 672 346 112 bytes)

So when I take another DVD for the copied, it tells me that the capacity of my DVD is not big enough.

I have the same concern with ISO

I made an ISO of this DVD, but of course, the ISO is too big for a DVD DL

How is it possible ?

And the basic DVD is a DVD DL verbatim

Optiarc DVD RW AD-5280S 1.G8 (SATA)
Current Profile: DVD + R DL

Disc Information:
Status: Complete
State of Last Session: Complete
Erasable: No
Sessions: 1
Sectors: 4,234,544
Size: 8 672 346 112 bytes
Time: 941: 02: 44 (MM: SS: FF)
MID: MKM-003-00
Supported Write Speeds: 4x; 6x; 8x

DVD ± R DL Boundary Information:
L0 Data Zone Capacity: 2,117,280
Changeable: No
TOC Information:
Session 1 ... (LBA: 0)
-> Track 01 (Mode 1, LBA: 0 - 4234543)
-> LeadOut (LBA: 4234544)

Physical Format Information (ADIP - L0):
Disc ID: MKM-003-00
Book Type: DVD + R DL
Share Version: 1
Disc Size: 120 mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um / bit
Track Density: 0.74 um / track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,283,519

Physical Format Information (ADIP - L1):
Disc ID: MKM-003-00
Book Type: DVD + R DL
Share Version: 1
Disc Size: 120 mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um / bit
Track Density: 0.74 um / track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,607
Last Physical Sector in Layer 0: 2,283,519

Physical Format Information (Last Recorded):
Disc ID: MKM-003-00
Book Type: DVD-ROM
Share Version: 1
Disc Size: 120 mm
Maximum Read Rate: Not Specified
Number of Layers: 2
Track Path: Opposite Track Path (OTP)
Linear Density: 0.293 um / bit
Track Density: 0.74 um / track
First Physical Sector of Data Area: 196,608
Last Physical Sector of Data Area: 16,580,591
Last Physical Sector in Layer 0: 2,313,887

Layer Information:
Layer 0 Sectors: 2,117,280 (50%)
Layer 1 Sectors: 2,117,264 (50%)

Can you tell me how is it possible to put an ISO bigger than the DVD?

How to copy this DVD?

Thanks for your help