Hi, Thanks for the efforts put into making Ruby available! While new to Ruby it seems worth investing some time in. Eventually I'd like to unpack some data from a binary file and insert it into a MySQL table. At the moment I'm having trouble looping over the source data file, and just viewing the data to make sure things are proceeding correctly. FYI: eventually I need this to run quickly (many GB's to be processed), but for the moment I'll settle for getting anything to work :) The ruby details are: $ ruby -v ruby 1.8.5 (2006-08-25) [i386-cygwin] ----------- Attempt 1 ( an error ) ----------- File.foreach("./INPUT/T200510A.BIN", "rb") do |f| print f.read(19).unpack('I4 I4 I4 I2 I2 a2 a1') end NoMethodError: [FATAL] failed to allocate memory ----------- Attempt 2 ( an error ) ----------- File.open("./INPUT/T200510A.BIN", "rb").readlines do |f| data = f.read(19).unpack('I4 I4 I4 I2 I2 a2 a1') print data end /usr/lib/ruby/1.8/irb.rb:298:in `inspect': failed to allocate memory (NoMemoryEr ror) from /usr/lib/ruby/1.8/irb.rb:298:in `output_value' from /usr/lib/ruby/1.8/irb.rb:151:in `eval_input' from /usr/lib/ruby/1.8/irb.rb:259:in `signal_status' from /usr/lib/ruby/1.8/irb.rb:147:in `eval_input' from /usr/lib/ruby/1.8/irb/ruby-lex.rb:244:in `each_top_level_statement' from /usr/lib/ruby/1.8/irb/ruby-lex.rb:230:in `loop' from /usr/lib/ruby/1.8/irb/ruby-lex.rb:230:in `each_top_level_statement' from /usr/lib/ruby/1.8/irb/ruby-lex.rb:229:in `catch' from /usr/lib/ruby/1.8/irb/ruby-lex.rb:229:in `each_top_level_statement' from /usr/lib/ruby/1.8/irb.rb:146:in `eval_input' from /usr/lib/ruby/1.8/irb.rb:70:in `start' from /usr/lib/ruby/1.8/irb.rb:69:in `catch' from /usr/lib/ruby/1.8/irb.rb:69:in `start' from /usr/bin/irb:13 -- Posted via http://www.ruby-forum.com/.