If the program uses standard block loading then you can test the image is correct in the following way:
Press PLAY then any key
<filename> block <block number> <file type symbol>
The following table identifies the common file types:
|$||Unprotected BASIC file|
|%||protected BASIC file (the program can't be listed)|
|&||Unprotected binary file|
|'||Protected binary file|
An example is:
HUDSON HAWK block 1 &
If the block is correct and the CRC checksum is valid, then "Ok" will be printed after the file type symbol. e.g.
HUDSON HAWK block 1 & Ok
If there is an error "Read error a" or "Read error b" will be displayed.
Why is this method good?
HUDSON HAWK block 1 & Ok HUDSON HAWK block 3 & Ok
In this example, block 2 of "HUDSON HAWK" is missing. This would result in a "Rewind tape" error.