The Season 4 DVD set, released by Warner Home Video, includes several interactive and behind-the-scenes supplements:
The DVD maintains the original 1.33:1 (4:3) full-screen broadcast ratio, whereas newer Blu-ray and streaming versions are often remastered into 1.78:1 widescreen. Watch Friends S04E22 DVD
Interviews titled "Friends of Friends" featuring guest stars from the season. Technical Specifications The Season 4 DVD set, released by Warner
A documentary featurette exploring the show's global impact. The Season 4 DVD set
Interestingly, the DVD version completely removes a scene found in the TV/Blu-ray version featuring Chandler and Joey's pet goose. DVD Special Features