Objective proficiency Second Edition, 2013 edition including these contents:
1) Student's book with answers.
2) Teacher's book.
3) Audio for the Student's book.
4) Audio for the Workbook.
5) Downloadable software (from the Cambridge site).
6) Teachers materials (available only after the teacher's access on the Cambridge site, including Test Papers and Teacher's book's audio).
SIZE - 457 Mb.
Quality: the Student's book is scanned from beginning to end completely including absolutely all pages but the blank ones, in 300 DPI into a .pdf file with OCR, i.e. one can copy the text from the page. The audio recordings are in .mp3 with 128 kbps.
This book [url="http://www.cambridge.org/9781107646377"]on Cambridge site[/url]