I please need help with saving on media

[winstonlevel2]

I recently got a vic-20, and a 1541 disk drive and C2N cassette unit. Both systems work fine while loading software, but it breaks while saving or editing. Upon formating the disk with [OPEN 1,8,15,"N:NAME,01":CLOSE1] it seems to work; it outputs [READY], but the red indicator light on the disk drive starts flashing.

On running [LOAD"$",8], the output is as follows:
[SEARCHING FOR $]
[LOADING]
It never goes past this, and stays stuck.

If I try saving a program on disk with
[10 PRINT "TEST"]

• 
  the output is:
  [10 PRINT"TEST"]
  [READY]
  and with the command:
  [SAVE"TEST",8]
  the output is as follows:
  [SAVING TEST]
  [READY]
  But on loading with [LOAD"TEST",8], the following happens, and the red indicator on the disk flashes:
  [SEARCHING FOR TEST]
  [?FILE NOT FOUND]
  [ ERROR]
  [READY]
  
  Could someone please help me find out what in wrong, and what I can do to fix it?