& what is wrong here?

veri:Long=16777215
fs2:Long=5000000000
For i:Long=1 To fs2
  If (i & veri) = 0
    Print i
  EndIf
Next
Print
Print i
End

Isn't long 64-bit ?
Filesizes of DVD.iso are wrong if they are bigger as 2^31 ?

.

What do you expect the output to be?

16777216
33554432
50331648
67108864
83886080
100663296
117440512
134217728
150994944
167772160
184549376
201326592

Why is this wrong. The first time i&111111111111111111111111 is 0 is when i =1000000000000000000000000

Edit Oh stupid me point seen, I should have let it run first time

veri:Long=16777215:Long
fs2:Long=5000000000:Long
For i:Long=1 To fs2
  If (i & veri) = 0
    Print i
  EndIf
Next
Print
Print i
End

5000000000 isnt a long (it is truncated to the default Int). 5000000000:long is a long
(Which could be counted as a bug)

Filesize() doesn't return a Long.

Ahh okay ... so numbers should have a decraration what they are ... funny, but acceptable (although compiler in other languages know the same thing without it)
@FlameDuck
The PowerBasic solution does ... In Windows it does anyway (as I worked out of the PB-Example) ... so why must it be different in BMax?

Max uses the C standard library for file IO, which itself uses ints.

We will not be implementing 'long' file ops in the foreseeable future, although you could always look at using native windows routines yourself.