I need to gain some free space on my internal ps3 hdd in order to install the games, so is it safe to delete some folders on internal ps3 hdd? Namely: dev_hdd0/tenp: there are total of 20 GB of data. Also, dev_ps2disc/ps3_EXTRA - there are total of 11 gb of data. What are those folders for, and can I delete them safely?
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