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Hi....Testing on a Pi is Raspberry Pi 3 Model B Plus Rev 1.3 - revision a020d3Download the 'with desktop' version from the site (SHA starts 49a6b8) directly (i.e. not torrent)SHA - checked fine using Quick Hash for Mac (Version 1.0 (13))
Imaged using Etcher for Mac (Version 1.5.30) with verification on to a Samsung 64Gb class 10 card (not new)
Image verification reported fine
Added blank ssh and my standard (Stretch) wpa_supplicant.conf files to boot via copy / paste.Booted fine in well under a minute.