Streaming is convenient — but what arrives at your TV is a heavily compressed copy, squeezed to fit your internet connection. A disc carries the master-quality version, with far more picture and sound data, every time you press play.
| 4K UHD disc | 4K streaming | |
|---|---|---|
| Video bitrate | Typically 50–100+ Mbps | Typically 15–25 Mbps |
| Audio format | Lossless Dolby TrueHD / Atmos, DTS-HD Master Audio / DTS:X | Lossy Dolby Digital Plus (Atmos is a compressed version) |
| HDR | HDR10 on every 4K disc; Dolby Vision or HDR10+ on many | HDR10 / Dolby Vision on many titles, at a far lower bitrate |
| Picture consistency | Identical every time you play it | Drops resolution when your connection dips |
| Ownership | You own the disc | A license that can be revoked or altered |
| Works offline | Yes — no internet needed | Needs a connection (downloads are limited) |
| Extras | Commentaries, featurettes, deleted scenes, alternate cuts | Rarely included |
| Resale | Resell, trade or lend it | No |