mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
stoyan@StoyanFL90:~/Downloads$ dmesg | tail -n 20
[ 102.512000] bridge-wlan0: up
[ 102.512000] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 102.528000] wlan0: Initial auth_alg=0
[ 102.528000] wlan0: authenticate with AP 00:1c:f9:2d:73:81
[ 102.728000] wlan0: authenticate with AP 00:1c:f9:2d:73:81
[ 102.728000] wlan0: RX authentication from 00:1c:f9:2d:73:81 (alg=0 transaction=2 status=0)
[ 102.728000] wlan0: authenticated
[ 102.728000] wlan0: associate with AP 00:1c:f9:2d:73:81
[ 102.732000] wlan0: RX AssocResp from 00:1c:f9:2d:73:81 (capab=0x421 status=0 aid=69)
[ 102.732000] wlan0: associated
[ 102.732000] wlan0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 burst=0
[ 102.736000] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 102.740000] wlan0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 burst=0
[ 102.740000] wlan0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 burst=30
[ 102.740000] wlan0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 burst=15
[ 507.892000] wlan0: CTS protection enabled (BSSID=00:1c:f9:2d:73:81)
[ 4368.444000] wlan0: CTS protection disabled (BSSID=00:1c:f9:2d:73:81)
[ 4371.616000] wlan0: CTS protection enabled (BSSID=00:1c:f9:2d:73:81)
[ 4399.620000] loop: module loaded
[ 4399.736000] Unable to identify CD-ROM format.