SQL & PL/SQL

I have around 1 million tiff images stored into Oracle 8.1.7. The field type is Long Raw. The frontend used to store images into the database is SQL Windows 5 from Gupta Corporation, now called Centura. I guess the images are stored in binary format in the database. I need to extract these images at the OS level. Each Rec_no contains one tiff file in database. The table structure is as follows:

Rec_no Number(8)
image Long Raw

My goal is to convert these tiff files to JPG files so that my web application written in ASP.Net can use them and show in IE. The files are required to be converted to jpg as IE does not have native support for showing the tiff files(I hope I am not wrong in this assumption). Can i convert these tiffs to jpg directly inside the oracle database??? or i need to extract them first, save at OS level, convert them and then write back to the database?? Pls give code examples if possible. I plan to migrate the database also from 8i to 10g shortly and this is one of the migration taks. Thanks in advance...

Ravinder Hooda