Criterion

Included as extras in the Criterion 8½ Blu-ray. Looks like SD source, and in a very rough quality.

Eureka MoC Blu-ray

Eureka MoC slightly better than Criterion

US RaroVideo Blu-ray or UK MoC Blu-ray, both OOP

US RaroVideo Blu-ray or UK MoC Blu-ray has no discernible difference even though MoC has more bitrate, see caps Both OOP

Italy Eagle Pictures Blu-ray is also OOP, not English-friendly and has no caps for comparison.

Severin Blu-ray

Eureka MoC Blu-ray

Eureka MoC marginally better than Criterion

Criterion Blu-ray

Criterion Fellini Set