Differences between the Blu-Ray and the DVD
Portable Blu-ray players let you watch a movie anytime and anywhere—great for long trips or waits at airports. You can also play movies on a laptop computer with a built-in Blu-ray drive, though portable players are often smaller and lighter and may offer more playback options. Most portable players look like small laptops minus the keyboard.
Keeping in view this up-and-coming trend, we bring to you International Consumer Research and Testing’s (ICRT) analyses wherein eight models of Blu-ray disk players from top six brands are tested and assessed. VOICE Society is an associate member of ICRT.
Blu-Ray 25GB (single layer) 50GB (dual layer)
405nm (blue laser)
0.85 120mm 1.2mm 0.1mm Yes
0.32μm 36.0Mbps (1x) 54.0Mbps (1.5x) 1920 × 1080 (1080p) 40.0Mbps
DVD 4.7GB (single layer) 8.5GB (dual layer)
650nm (red laser)
0.60 120mm 1.2mm 0.6mm No
0.74μm 11.08Mbps (1x) 10.08Mbps (<1x) 720 × 480/720 × 576 (480i/480p/576i) 9.8Mbps