amattias t1_j2d94si wrote on December 31, 2022 at 11:28 AM Reply to comment by RevaniteAnime in ELI5: The difference between Blu Ray and DVD by i_photo_sims Blu-ray uses a shorter wavelength laser than DVD, not larger. The Blu-ray wavelength is 405 nm compared to the 650 nm wavelength that DVD uses. Permalink Parent 2
amattias t1_j2d94si wrote
Reply to comment by RevaniteAnime in ELI5: The difference between Blu Ray and DVD by i_photo_sims
Blu-ray uses a shorter wavelength laser than DVD, not larger. The Blu-ray wavelength is 405 nm compared to the 650 nm wavelength that DVD uses.