Read-only SD cards

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http://askubuntu.com – I've got an IcyBox USB hub/card reader combo in my computer, running Ubuntu 12.10. It's got an issue with SD cards. It always mounts them read-only, regardless of the write-lock switch. This is observed across many SD cards that otherwise work, and crucially occurs for a microSD in an adapter, where the microSD was fine in the microSD slot in the reader. Anyone got any ideas as to what's going on and how I can fix it? (HowTos)