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How to burn a 4 GB ISO to a DVD
A single-layer DVD holds 4.7 GB, so most 4 GB ISOs just fit. If yours is slightly over, use a dual-layer DVD. cdBurner shows the fit before you burn.
Step by step
Connect the burn agent
Open onlinecdburner.com and make sure the burn agent is connected (install it once if needed).
Insert a blank disc big enough for the image
Match the disc to the image size — a CD for small images, a DVD for up to 4.7 GB, a Blu-ray for more.
Choose “ISO image”
Select your ~4 GB .iso.
Burn the image
cdBurner writes it sector-for-sector so the disc is bootable/readable exactly as intended. Keep Finalize on.
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